﻿<?xml version="1.0" encoding="utf-8"?>
<Return xmlns="http://www.irs.gov/efile" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" returnVersion="2017v2.3">
  <ReturnHeader binaryAttachmentCnt="0">
    <ReturnTs>2019-08-01T14:16:11-05:00</ReturnTs>
    <TaxPeriodEndDt>2018-09-30</TaxPeriodEndDt>
    <PreparerFirmGrp>
      <PreparerFirmEIN>472005336</PreparerFirmEIN>
      <PreparerFirmName>
        <BusinessNameLine1Txt>VIDUSSI MAKARA GROUP LLC</BusinessNameLine1Txt>
      </PreparerFirmName>
      <PreparerUSAddress>
        <AddressLine1Txt>1361 ROYAL PALM SQUARE BLVD SUITE</AddressLine1Txt>
        <CityNm>FORT MYERS</CityNm>
        <StateAbbreviationCd>FL</StateAbbreviationCd>
        <ZIPCd>33919</ZIPCd>
      </PreparerUSAddress>
    </PreparerFirmGrp>
    <ReturnTypeCd>990</ReturnTypeCd>
    <TaxPeriodBeginDt>2017-10-01</TaxPeriodBeginDt>
    <Filer>
      <EIN>237090889</EIN>
      <BusinessName>
        <BusinessNameLine1Txt>CALUSA NATURE CENTER &amp; PLANETARIUM</BusinessNameLine1Txt>
      </BusinessName>
      <BusinessNameControlTxt>CALU</BusinessNameControlTxt>
      <USAddress>
        <AddressLine1Txt>3450 ORTIZ AVE</AddressLine1Txt>
        <CityNm>FORT MYERS</CityNm>
        <StateAbbreviationCd>FL</StateAbbreviationCd>
        <ZIPCd>33905</ZIPCd>
      </USAddress>
    </Filer>
    <BusinessOfficerGrp>
      <PersonNm>DR WILLIAM HAMMOND</PersonNm>
      <PersonTitleTxt>PRESIDENT</PersonTitleTxt>
      <SignatureDt>2019-03-01</SignatureDt>
      <DiscussWithPaidPreparerInd>true</DiscussWithPaidPreparerInd>
    </BusinessOfficerGrp>
    <PreparerPersonGrp>
      <PreparerPersonNm>MINETTE L LACROIX CPA</PreparerPersonNm>
      <PTIN>P00738837</PTIN>
      <PhoneNum>2392780762</PhoneNum>
      <PreparationDt>2019-06-06</PreparationDt>
    </PreparerPersonGrp>
    <FilingSecurityInformation>
      <IPAddress>
        <IPv4AddressTxt>65.124.207.2</IPv4AddressTxt>
      </IPAddress>
      <IPDt>2019-08-01</IPDt>
      <IPTm>14:16:11</IPTm>
      <IPTimezoneCd>CD</IPTimezoneCd>
      <FilingLicenseTypeCd>P</FilingLicenseTypeCd>
      <AtSubmissionCreationDeviceId>0B29D1B7F8761CFBB7F5559489A1A62C497813CF</AtSubmissionCreationDeviceId>
      <AtSubmissionFilingDeviceId>0B29D1B7F8761CFBB7F5559489A1A62C497813CF</AtSubmissionFilingDeviceId>
    </FilingSecurityInformation>
    <TaxYr>2017</TaxYr>
    <BuildTS>2019-02-21 02:37:17Z</BuildTS>
  </ReturnHeader>
  <ReturnData documentCnt="5">
    <IRS990 documentId="RetDoc2" referenceDocumentId="RetDoc5">
      <PrincipalOfficerNm>GORDON GAIR</PrincipalOfficerNm>
      <GrossReceiptsAmt>411406</GrossReceiptsAmt>
      <GroupReturnForAffiliatesInd>false</GroupReturnForAffiliatesInd>
      <Organization501c3Ind>X</Organization501c3Ind>
      <WebsiteAddressTxt>CALUSANATURE.ORG</WebsiteAddressTxt>
      <TypeOfOrganizationCorpInd>X</TypeOfOrganizationCorpInd>
      <ActivityOrMissionDesc>THE CALUSA NATURE CENTER AND PLANETARIUM IS A PRIVATE, NOT FOR PROFIT, ENVIRONMENTAL EDUCATION ORGANIZATION LOCATED IN FORT MYERS, FLORIDA. OUR 105 ACRE SITE HAS A MUSEUM, THREE NATURE TRAILS, A PLANETARIUM, BUTTERFLY AND BIRD AVIARIES, A GIFT SHOP AND MEETING AND PICNIC AREAS.</ActivityOrMissionDesc>
      <VotingMembersGoverningBodyCnt>17</VotingMembersGoverningBodyCnt>
      <VotingMembersIndependentCnt>17</VotingMembersIndependentCnt>
      <TotalEmployeeCnt>0</TotalEmployeeCnt>
      <TotalGrossUBIAmt>0</TotalGrossUBIAmt>
      <PYContributionsGrantsAmt>115061</PYContributionsGrantsAmt>
      <CYContributionsGrantsAmt>86870</CYContributionsGrantsAmt>
      <PYProgramServiceRevenueAmt>188241</PYProgramServiceRevenueAmt>
      <CYProgramServiceRevenueAmt>230604</CYProgramServiceRevenueAmt>
      <CYInvestmentIncomeAmt>0</CYInvestmentIncomeAmt>
      <PYOtherRevenueAmt>46986</PYOtherRevenueAmt>
      <CYOtherRevenueAmt>74232</CYOtherRevenueAmt>
      <PYTotalRevenueAmt>350288</PYTotalRevenueAmt>
      <CYTotalRevenueAmt>391706</CYTotalRevenueAmt>
      <CYGrantsAndSimilarPaidAmt>0</CYGrantsAndSimilarPaidAmt>
      <CYBenefitsPaidToMembersAmt>0</CYBenefitsPaidToMembersAmt>
      <PYSalariesCompEmpBnftPaidAmt>210242</PYSalariesCompEmpBnftPaidAmt>
      <CYSalariesCompEmpBnftPaidAmt>206351</CYSalariesCompEmpBnftPaidAmt>
      <CYTotalProfFndrsngExpnsAmt>0</CYTotalProfFndrsngExpnsAmt>
      <CYTotalFundraisingExpenseAmt>4512</CYTotalFundraisingExpenseAmt>
      <PYOtherExpensesAmt>181603</PYOtherExpensesAmt>
      <CYOtherExpensesAmt>183755</CYOtherExpensesAmt>
      <PYTotalExpensesAmt>391845</PYTotalExpensesAmt>
      <CYTotalExpensesAmt>390106</CYTotalExpensesAmt>
      <PYRevenuesLessExpensesAmt>-41557</PYRevenuesLessExpensesAmt>
      <CYRevenuesLessExpensesAmt>1600</CYRevenuesLessExpensesAmt>
      <TotalAssetsBOYAmt>283901</TotalAssetsBOYAmt>
      <TotalAssetsEOYAmt>283312</TotalAssetsEOYAmt>
      <TotalLiabilitiesBOYAmt>52677</TotalLiabilitiesBOYAmt>
      <TotalLiabilitiesEOYAmt>50488</TotalLiabilitiesEOYAmt>
      <NetAssetsOrFundBalancesBOYAmt>231224</NetAssetsOrFundBalancesBOYAmt>
      <NetAssetsOrFundBalancesEOYAmt>232824</NetAssetsOrFundBalancesEOYAmt>
      <InfoInScheduleOPartIIIInd>X</InfoInScheduleOPartIIIInd>
      <MissionDesc>THE CALUSA NATURE CENTER AND PLANETARIUM IS A PRIVATE, NOT FOR PROFIT, ENVIRONMENTAL EDUCATION ORGANIZATION LOCATED IN FORT MYERS, FLORIDA. OUR 105 ACRE SITE HAS A MUSEUM, THREE NATURE TRAILS, A PLANETARIUM, BUTTERFLY AND BIRD AVIARIES, A GIFT SHOP AND MEETING AND PICNIC AREAS.</MissionDesc>
      <SignificantNewProgramSrvcInd>false</SignificantNewProgramSrvcInd>
      <SignificantChangeInd>false</SignificantChangeInd>
      <ExpenseAmt>222159</ExpenseAmt>
      <RevenueAmt>138362</RevenueAmt>
      <Desc>NATURAL HISTORY PROGRAMS - INCLUDES MAINTENANCE &amp; INTERPRETATION OF MUSEUM, AVIARY, ANIMAL EXHIBITS AND TRAIL SYSTEM, ALONG WITH EDUCATION PROGRAMS FOR BOTH CHILDREN AND ADULTS.</Desc>
      <ProgSrvcAccomActy2Grp>
        <ExpenseAmt>140950</ExpenseAmt>
        <RevenueAmt>92242</RevenueAmt>
        <Desc>EARTH &amp; SPACE SCIENCE PROGRAMS - INCLUDES MAINTENANCE &amp; INTERPRETATION OF EXHIBITS AND PRESENTATION IN THE PLANETARIUM, ALONG WIHT EDUCATION FOR BOTH CHILDREN AND ADULTS THROUGH LASER AND PLANETARIUM PRESENTATIONS.</Desc>
      </ProgSrvcAccomActy2Grp>
      <TotalProgramServiceExpensesAmt>363109</TotalProgramServiceExpensesAmt>
      <DescribedInSection501c3Ind referenceDocumentId="RetDoc6">true</DescribedInSection501c3Ind>
      <ScheduleBRequiredInd>false</ScheduleBRequiredInd>
      <PoliticalCampaignActyInd>false</PoliticalCampaignActyInd>
      <LobbyingActivitiesInd>false</LobbyingActivitiesInd>
      <SubjectToProxyTaxInd>false</SubjectToProxyTaxInd>
      <DonorAdvisedFundInd referenceDocumentId="RetDoc3">false</DonorAdvisedFundInd>
      <ConservationEasementsInd referenceDocumentId="RetDoc3">false</ConservationEasementsInd>
      <CollectionsOfArtInd referenceDocumentId="RetDoc3">false</CollectionsOfArtInd>
      <CreditCounselingInd referenceDocumentId="RetDoc3">false</CreditCounselingInd>
      <TempOrPermanentEndowmentsInd referenceDocumentId="RetDoc3">false</TempOrPermanentEndowmentsInd>
      <ReportLandBuildingEquipmentInd referenceDocumentId="RetDoc3">true</ReportLandBuildingEquipmentInd>
      <ReportInvestmentsOtherSecInd referenceDocumentId="RetDoc3">false</ReportInvestmentsOtherSecInd>
      <ReportProgramRelatedInvstInd referenceDocumentId="RetDoc3">false</ReportProgramRelatedInvstInd>
      <ReportOtherAssetsInd referenceDocumentId="RetDoc3">true</ReportOtherAssetsInd>
      <ReportOtherLiabilitiesInd referenceDocumentId="RetDoc3">true</ReportOtherLiabilitiesInd>
      <IncludeFIN48FootnoteInd referenceDocumentId="RetDoc3">false</IncludeFIN48FootnoteInd>
      <IndependentAuditFinclStmtInd referenceDocumentId="RetDoc3">false</IndependentAuditFinclStmtInd>
      <ConsolidatedAuditFinclStmtInd referenceDocumentId="RetDoc3">false</ConsolidatedAuditFinclStmtInd>
      <SchoolOperatingInd>false</SchoolOperatingInd>
      <ForeignOfficeInd>false</ForeignOfficeInd>
      <ForeignActivitiesInd>false</ForeignActivitiesInd>
      <MoreThan5000KToOrgInd>false</MoreThan5000KToOrgInd>
      <MoreThan5000KToIndividualsInd>false</MoreThan5000KToIndividualsInd>
      <ProfessionalFundraisingInd referenceDocumentId="RetDoc4">false</ProfessionalFundraisingInd>
      <FundraisingActivitiesInd referenceDocumentId="RetDoc4">true</FundraisingActivitiesInd>
      <GamingActivitiesInd referenceDocumentId="RetDoc4">false</GamingActivitiesInd>
      <OperateHospitalInd>false</OperateHospitalInd>
      <GrantsToOrganizationsInd>false</GrantsToOrganizationsInd>
      <GrantsToIndividualsInd>false</GrantsToIndividualsInd>
      <ScheduleJRequiredInd>false</ScheduleJRequiredInd>
      <TaxExemptBondsInd>false</TaxExemptBondsInd>
      <EngagedInExcessBenefitTransInd>false</EngagedInExcessBenefitTransInd>
      <PYExcessBenefitTransInd>false</PYExcessBenefitTransInd>
      <LoanOutstandingInd>false</LoanOutstandingInd>
      <GrantToRelatedPersonInd>false</GrantToRelatedPersonInd>
      <BusinessRlnWithOrgMemInd>false</BusinessRlnWithOrgMemInd>
      <BusinessRlnWithFamMemInd>false</BusinessRlnWithFamMemInd>
      <BusinessRlnWithOfficerEntInd>false</BusinessRlnWithOfficerEntInd>
      <DeductibleNonCashContriInd>false</DeductibleNonCashContriInd>
      <DeductibleArtContributionInd>false</DeductibleArtContributionInd>
      <TerminateOperationsInd>false</TerminateOperationsInd>
      <PartialLiquidationInd>false</PartialLiquidationInd>
      <DisregardedEntityInd>false</DisregardedEntityInd>
      <RelatedEntityInd>false</RelatedEntityInd>
      <RelatedOrganizationCtrlEntInd>false</RelatedOrganizationCtrlEntInd>
      <TrnsfrExmptNonChrtblRltdOrgInd>false</TrnsfrExmptNonChrtblRltdOrgInd>
      <ActivitiesConductedPrtshpInd>false</ActivitiesConductedPrtshpInd>
      <ScheduleORequiredInd>false</ScheduleORequiredInd>
      <IRPDocumentCnt>0</IRPDocumentCnt>
      <IRPDocumentW2GCnt>0</IRPDocumentW2GCnt>
      <BackupWthldComplianceInd>true</BackupWthldComplianceInd>
      <EmployeeCnt>0</EmployeeCnt>
      <UnrelatedBusIncmOverLimitInd>false</UnrelatedBusIncmOverLimitInd>
      <ForeignFinancialAccountInd>false</ForeignFinancialAccountInd>
      <ProhibitedTaxShelterTransInd>false</ProhibitedTaxShelterTransInd>
      <TaxablePartyNotificationInd>false</TaxablePartyNotificationInd>
      <NondeductibleContributionsInd>false</NondeductibleContributionsInd>
      <IndoorTanningServicesInd>false</IndoorTanningServicesInd>
      <InfoInScheduleOPartVIInd>X</InfoInScheduleOPartVIInd>
      <GoverningBodyVotingMembersCnt>17</GoverningBodyVotingMembersCnt>
      <IndependentVotingMemberCnt>17</IndependentVotingMemberCnt>
      <FamilyOrBusinessRlnInd>true</FamilyOrBusinessRlnInd>
      <DelegationOfMgmtDutiesInd>false</DelegationOfMgmtDutiesInd>
      <ChangeToOrgDocumentsInd>false</ChangeToOrgDocumentsInd>
      <MaterialDiversionOrMisuseInd>false</MaterialDiversionOrMisuseInd>
      <MembersOrStockholdersInd>false</MembersOrStockholdersInd>
      <ElectionOfBoardMembersInd>false</ElectionOfBoardMembersInd>
      <DecisionsSubjectToApprovaInd>false</DecisionsSubjectToApprovaInd>
      <MinutesOfGoverningBodyInd>true</MinutesOfGoverningBodyInd>
      <MinutesOfCommitteesInd>true</MinutesOfCommitteesInd>
      <OfficerMailingAddressInd>false</OfficerMailingAddressInd>
      <LocalChaptersInd>false</LocalChaptersInd>
      <Form990ProvidedToGvrnBodyInd>false</Form990ProvidedToGvrnBodyInd>
      <ConflictOfInterestPolicyInd>false</ConflictOfInterestPolicyInd>
      <WhistleblowerPolicyInd>false</WhistleblowerPolicyInd>
      <DocumentRetentionPolicyInd>false</DocumentRetentionPolicyInd>
      <CompensationProcessCEOInd>false</CompensationProcessCEOInd>
      <CompensationProcessOtherInd>false</CompensationProcessOtherInd>
      <InvestmentInJointVentureInd>false</InvestmentInJointVentureInd>
      <BooksInCareOfDetail>
        <PersonNm>MINDY LA CROIX</PersonNm>
        <PhoneNum>2392783435</PhoneNum>
        <USAddress>
          <AddressLine1Txt>3450 ORTIZ AVE</AddressLine1Txt>
          <CityNm>FORT MYERS</CityNm>
          <StateAbbreviationCd>FL</StateAbbreviationCd>
          <ZIPCd>33905</ZIPCd>
        </USAddress>
      </BooksInCareOfDetail>
      <NoListedPersonsCompensatedInd>X</NoListedPersonsCompensatedInd>
      <Form990PartVIISectionAGrp>
        <PersonNm>DR WILLIAM HAMMOND</PersonNm>
        <TitleTxt>PRESIDENT</TitleTxt>
        <AverageHoursPerWeekRt>20.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <OfficerInd>X</OfficerInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>JERRY COMPTON</PersonNm>
        <TitleTxt>TRUSTEE</TitleTxt>
        <AverageHoursPerWeekRt>5.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <OfficerInd>X</OfficerInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>NINA COMPTON</PersonNm>
        <TitleTxt>SECRETARY</TitleTxt>
        <AverageHoursPerWeekRt>10.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <OfficerInd>X</OfficerInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>RON MADL</PersonNm>
        <TitleTxt>TRUSTEE</TitleTxt>
        <AverageHoursPerWeekRt>2.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <OfficerInd>X</OfficerInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>BRANDON PHILLOPS</PersonNm>
        <TitleTxt>TRUSTEE</TitleTxt>
        <AverageHoursPerWeekRt>2.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <OfficerInd>X</OfficerInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>JON WADAS</PersonNm>
        <TitleTxt>TRUSTEE</TitleTxt>
        <AverageHoursPerWeekRt>2.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <OfficerInd>X</OfficerInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>RAY JUDAH</PersonNm>
        <TitleTxt>TRUSTEE</TitleTxt>
        <AverageHoursPerWeekRt>2.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <OfficerInd>X</OfficerInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>RICK TULLY</PersonNm>
        <TitleTxt>TRUSTEE</TitleTxt>
        <AverageHoursPerWeekRt>2.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <OfficerInd>X</OfficerInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>BRITTA SODERGVIST</PersonNm>
        <TitleTxt>TRUSTEE</TitleTxt>
        <AverageHoursPerWeekRt>10.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <OfficerInd>X</OfficerInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>DEIDRE BASTIN</PersonNm>
        <TitleTxt>TRUSTEE</TitleTxt>
        <AverageHoursPerWeekRt>4.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <OfficerInd>X</OfficerInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>EDWIN EVERHAM</PersonNm>
        <TitleTxt>TRUSTEE</TitleTxt>
        <AverageHoursPerWeekRt>4.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <OfficerInd>X</OfficerInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>JEFF STARRAK</PersonNm>
        <TitleTxt>TRUSTEE</TitleTxt>
        <AverageHoursPerWeekRt>15.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <OfficerInd>X</OfficerInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>JIM REYNOLDS</PersonNm>
        <TitleTxt>TRUSTEE</TitleTxt>
        <AverageHoursPerWeekRt>5.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <OfficerInd>X</OfficerInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>MINDY LA CROIX</PersonNm>
        <TitleTxt>TREASURER</TitleTxt>
        <AverageHoursPerWeekRt>10.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <OfficerInd>X</OfficerInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>JOAN CULVER</PersonNm>
        <TitleTxt>TRUSTEE</TitleTxt>
        <AverageHoursPerWeekRt>5.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <OfficerInd>X</OfficerInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>SUSAN MINAYA</PersonNm>
        <TitleTxt>TRUSTEE</TitleTxt>
        <AverageHoursPerWeekRt>5.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <OfficerInd>X</OfficerInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>GORDON GAIR</PersonNm>
        <TitleTxt>TRUSTEE</TitleTxt>
        <AverageHoursPerWeekRt>5.00</AverageHoursPerWeekRt>
        <InstitutionalTrusteeInd>X</InstitutionalTrusteeInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <FormerOfcrEmployeesListedInd>false</FormerOfcrEmployeesListedInd>
      <TotalCompGreaterThan150KInd>false</TotalCompGreaterThan150KInd>
      <CompensationFromOtherSrcsInd>false</CompensationFromOtherSrcsInd>
      <FederatedCampaignsAmt>28828</FederatedCampaignsAmt>
      <MembershipDuesAmt>44542</MembershipDuesAmt>
      <AllOtherContributionsAmt>13500</AllOtherContributionsAmt>
      <TotalContributionsAmt>86870</TotalContributionsAmt>
      <ProgramServiceRevenueGrp>
        <Desc>PROGRAM SERVICE REVENUE</Desc>
        <TotalRevenueColumnAmt>230604</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>230604</RelatedOrExemptFuncIncomeAmt>
      </ProgramServiceRevenueGrp>
      <TotalProgramServiceRevenueAmt>230604</TotalProgramServiceRevenueAmt>
      <FundraisingGrossIncomeAmt>83788</FundraisingGrossIncomeAmt>
      <FundraisingDirectExpensesAmt>14628</FundraisingDirectExpensesAmt>
      <NetIncmFromFundraisingEvtGrp>
        <TotalRevenueColumnAmt>69160</TotalRevenueColumnAmt>
      </NetIncmFromFundraisingEvtGrp>
      <GrossSalesOfInventoryAmt>10144</GrossSalesOfInventoryAmt>
      <CostOfGoodsSoldAmt>5072</CostOfGoodsSoldAmt>
      <NetIncomeOrLossGrp>
        <TotalRevenueColumnAmt>5072</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>5072</RelatedOrExemptFuncIncomeAmt>
      </NetIncomeOrLossGrp>
      <TotalRevenueGrp>
        <TotalRevenueColumnAmt>391706</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>235676</RelatedOrExemptFuncIncomeAmt>
      </TotalRevenueGrp>
      <OtherSalariesAndWagesGrp>
        <TotalAmt>206351</TotalAmt>
        <ProgramServicesAmt>194851</ProgramServicesAmt>
        <ManagementAndGeneralAmt>11500</ManagementAndGeneralAmt>
      </OtherSalariesAndWagesGrp>
      <FeesForServicesAccountingGrp>
        <TotalAmt>1650</TotalAmt>
        <ManagementAndGeneralAmt>1650</ManagementAndGeneralAmt>
      </FeesForServicesAccountingGrp>
      <AdvertisingGrp>
        <TotalAmt>4170</TotalAmt>
        <ProgramServicesAmt>4170</ProgramServicesAmt>
      </AdvertisingGrp>
      <OfficeExpensesGrp>
        <TotalAmt>5451</TotalAmt>
        <ProgramServicesAmt>4633</ProgramServicesAmt>
        <ManagementAndGeneralAmt>545</ManagementAndGeneralAmt>
        <FundraisingAmt>273</FundraisingAmt>
      </OfficeExpensesGrp>
      <OccupancyGrp>
        <TotalAmt>64480</TotalAmt>
        <ProgramServicesAmt>54808</ProgramServicesAmt>
        <ManagementAndGeneralAmt>6448</ManagementAndGeneralAmt>
        <FundraisingAmt>3224</FundraisingAmt>
      </OccupancyGrp>
      <ConferencesMeetingsGrp>
        <TotalAmt>310</TotalAmt>
        <ManagementAndGeneralAmt>310</ManagementAndGeneralAmt>
      </ConferencesMeetingsGrp>
      <InterestGrp>
        <TotalAmt>179</TotalAmt>
        <ProgramServicesAmt>179</ProgramServicesAmt>
      </InterestGrp>
      <DepreciationDepletionGrp>
        <TotalAmt>19841</TotalAmt>
        <ProgramServicesAmt>19841</ProgramServicesAmt>
      </DepreciationDepletionGrp>
      <InsuranceGrp>
        <TotalAmt>20320</TotalAmt>
        <ProgramServicesAmt>17273</ProgramServicesAmt>
        <ManagementAndGeneralAmt>2032</ManagementAndGeneralAmt>
        <FundraisingAmt>1015</FundraisingAmt>
      </InsuranceGrp>
      <OtherExpensesGrp>
        <Desc>ANIMAL CARE</Desc>
        <TotalAmt>52717</TotalAmt>
        <ProgramServicesAmt>52717</ProgramServicesAmt>
      </OtherExpensesGrp>
      <OtherExpensesGrp>
        <Desc>BANK &amp; CC FEES</Desc>
        <TotalAmt>6541</TotalAmt>
        <ProgramServicesAmt>6541</ProgramServicesAmt>
      </OtherExpensesGrp>
      <OtherExpensesGrp>
        <Desc>TELEPHONE &amp; COMMUNICATION</Desc>
        <TotalAmt>5920</TotalAmt>
        <ProgramServicesAmt>5920</ProgramServicesAmt>
      </OtherExpensesGrp>
      <OtherExpensesGrp>
        <Desc>EQUIPMENT RENTAL</Desc>
        <TotalAmt>2176</TotalAmt>
        <ProgramServicesAmt>2176</ProgramServicesAmt>
      </OtherExpensesGrp>
      <TotalFunctionalExpensesGrp>
        <TotalAmt>390106</TotalAmt>
        <ProgramServicesAmt>363109</ProgramServicesAmt>
        <ManagementAndGeneralAmt>22485</ManagementAndGeneralAmt>
        <FundraisingAmt>4512</FundraisingAmt>
      </TotalFunctionalExpensesGrp>
      <CashNonInterestBearingGrp>
        <BOYAmt>3804</BOYAmt>
        <EOYAmt>19077</EOYAmt>
      </CashNonInterestBearingGrp>
      <SavingsAndTempCashInvstGrp>
        <BOYAmt>25217</BOYAmt>
        <EOYAmt>18281</EOYAmt>
      </SavingsAndTempCashInvstGrp>
      <InventoriesForSaleOrUseGrp>
        <BOYAmt>5534</BOYAmt>
        <EOYAmt>2179</EOYAmt>
      </InventoriesForSaleOrUseGrp>
      <LandBldgEquipCostOrOtherBssAmt>1672841</LandBldgEquipCostOrOtherBssAmt>
      <LandBldgEquipAccumDeprecAmt>1596118</LandBldgEquipAccumDeprecAmt>
      <LandBldgEquipBasisNetGrp>
        <BOYAmt>93688</BOYAmt>
        <EOYAmt>76723</EOYAmt>
      </LandBldgEquipBasisNetGrp>
      <OtherAssetsTotalGrp>
        <BOYAmt>155658</BOYAmt>
        <EOYAmt>167052</EOYAmt>
      </OtherAssetsTotalGrp>
      <TotalAssetsGrp>
        <BOYAmt>283901</BOYAmt>
        <EOYAmt>283312</EOYAmt>
      </TotalAssetsGrp>
      <AccountsPayableAccrExpnssGrp>
        <BOYAmt>24892</BOYAmt>
        <EOYAmt>33010</EOYAmt>
      </AccountsPayableAccrExpnssGrp>
      <UnsecuredNotesLoansPayableGrp>
        <BOYAmt>25805</BOYAmt>
        <EOYAmt>17333</EOYAmt>
      </UnsecuredNotesLoansPayableGrp>
      <OtherLiabilitiesGrp>
        <BOYAmt>1980</BOYAmt>
        <EOYAmt>145</EOYAmt>
      </OtherLiabilitiesGrp>
      <TotalLiabilitiesGrp>
        <BOYAmt>52677</BOYAmt>
        <EOYAmt>50488</EOYAmt>
      </TotalLiabilitiesGrp>
      <OrganizationFollowsSFAS117Ind>X</OrganizationFollowsSFAS117Ind>
      <UnrestrictedNetAssetsGrp>
        <BOYAmt>206007</BOYAmt>
        <EOYAmt>207607</EOYAmt>
      </UnrestrictedNetAssetsGrp>
      <TemporarilyRstrNetAssetsGrp>
        <BOYAmt>25217</BOYAmt>
        <EOYAmt>25217</EOYAmt>
      </TemporarilyRstrNetAssetsGrp>
      <TotalNetAssetsFundBalanceGrp>
        <BOYAmt>231224</BOYAmt>
        <EOYAmt>232824</EOYAmt>
      </TotalNetAssetsFundBalanceGrp>
      <TotLiabNetAssetsFundBalanceGrp>
        <BOYAmt>283901</BOYAmt>
        <EOYAmt>283312</EOYAmt>
      </TotLiabNetAssetsFundBalanceGrp>
      <ReconcilationRevenueExpnssAmt>1600</ReconcilationRevenueExpnssAmt>
      <MethodOfAccountingAccrualInd>X</MethodOfAccountingAccrualInd>
      <AccountantCompileOrReviewInd>false</AccountantCompileOrReviewInd>
      <FSAuditedInd>false</FSAuditedInd>
    </IRS990>
    <IRS990ScheduleA documentId="RetDoc6">
      <PubliclySupportedOrg509a2Ind>X</PubliclySupportedOrg509a2Ind>
      <GiftsGrantsContrisRcvd509Grp>
        <CurrentTaxYearMinus4YearsAmt>26517</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>49397</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>286409</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>115061</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>86870</CurrentTaxYearAmt>
        <TotalAmt>564254</TotalAmt>
      </GiftsGrantsContrisRcvd509Grp>
      <GrossReceiptsAdmissionsGrp>
        <CurrentTaxYearMinus4YearsAmt>193916</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>228646</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>244629</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>261779</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>324536</CurrentTaxYearAmt>
        <TotalAmt>1253506</TotalAmt>
      </GrossReceiptsAdmissionsGrp>
      <Total509Grp>
        <CurrentTaxYearMinus4YearsAmt>220433</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>278043</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>531038</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>376840</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>411406</CurrentTaxYearAmt>
        <TotalAmt>1817760</TotalAmt>
      </Total509Grp>
      <PublicSupportTotal509Amt>1817760</PublicSupportTotal509Amt>
      <GrossInvestmentIncome509Grp>
        <CurrentTaxYearMinus4YearsAmt>2</CurrentTaxYearMinus4YearsAmt>
        <TotalAmt>2</TotalAmt>
      </GrossInvestmentIncome509Grp>
      <InvestmentIncomeAndUBTIGrp>
        <CurrentTaxYearMinus4YearsAmt>2</CurrentTaxYearMinus4YearsAmt>
        <TotalAmt>2</TotalAmt>
      </InvestmentIncomeAndUBTIGrp>
      <TotalSupportCalendarYearGrp>
        <CurrentTaxYearMinus4YearsAmt>220435</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>278043</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>531038</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>376840</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>411406</CurrentTaxYearAmt>
        <TotalAmt>1817762</TotalAmt>
      </TotalSupportCalendarYearGrp>
      <PublicSupportCY509Pct>1.00000</PublicSupportCY509Pct>
      <InvestmentIncomeCYPct>0.00000</InvestmentIncomeCYPct>
      <InvestmentIncomePYPct>0.00000</InvestmentIncomePYPct>
      <ThirtyThrPctSuprtTestsCY509Ind>X</ThirtyThrPctSuprtTestsCY509Ind>
    </IRS990ScheduleA>
    <IRS990ScheduleD documentId="RetDoc3">
      <OtherLandBuildingsGrp>
        <OtherCostOrOtherBasisAmt>1672841</OtherCostOrOtherBasisAmt>
        <DepreciationAmt>1596118</DepreciationAmt>
        <BookValueAmt>76723</BookValueAmt>
      </OtherLandBuildingsGrp>
      <TotalBookValueLandBuildingsAmt>76723</TotalBookValueLandBuildingsAmt>
      <OtherAssetsOrgGrp>
        <Desc>CONSTRUCTION IN PROGRESS</Desc>
        <BookValueAmt>167052</BookValueAmt>
      </OtherAssetsOrgGrp>
      <TotalBookValueOtherAssetsAmt>167052</TotalBookValueOtherAssetsAmt>
      <OtherLiabilitiesOrgGrp>
        <Desc>OTHER LIABILITIES</Desc>
        <Amt>145</Amt>
      </OtherLiabilitiesOrgGrp>
      <TotalLiabilityAmt>145</TotalLiabilityAmt>
    </IRS990ScheduleD>
    <IRS990ScheduleG documentId="RetDoc4">
      <FundraisingEventInformationGrp>
        <Event1Nm>FUNDRAISING EVE</Event1Nm>
        <GrossReceiptsEvent1Amt>67066</GrossReceiptsEvent1Amt>
        <GrossRevenueEvent1Amt>67066</GrossRevenueEvent1Amt>
        <OtherDirectExpensesEvent1Amt>7855</OtherDirectExpensesEvent1Amt>
        <GrossReceiptsTotalAmt>67066</GrossReceiptsTotalAmt>
        <GrossRevenueTotalEventsAmt>67066</GrossRevenueTotalEventsAmt>
        <OthDirectExpnssTotalEventsAmt>7855</OthDirectExpnssTotalEventsAmt>
        <DirectExpenseSummaryEventsAmt>7855</DirectExpenseSummaryEventsAmt>
        <NetIncomeSummaryAmt>59211</NetIncomeSummaryAmt>
      </FundraisingEventInformationGrp>
    </IRS990ScheduleG>
    <IRS990ScheduleO documentId="RetDoc5">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990 - ORGANIZATION'S MISSION</FormAndLineReferenceDesc>
        <ExplanationTxt>THE CALUSA NATURE CENTER AND PLANETARIUM IS A PRIVATE, NOT FOR PROFIT, ENVIRONMENTAL EDUCATION ORGANIZATION LOCATED IN FORT MYERS, FLORIDA. OUR 105 ACRE SITE HAS A MUSEUM, THREE NATURE TRAILS, A PLANETARIUM, BUTTERFLY AND BIRD AVIARIES, A GIFT SHOP AND MEETING AND PICNIC AREAS.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PAGE 6, PART VI, LINE 2</FormAndLineReferenceDesc>
        <ExplanationTxt>JERRY COMPTON NINA COMPTON TRUSTEE TRUSTEE HUSBAND/WIFE</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PAGE 6, PART VI, LINE 11B</FormAndLineReferenceDesc>
        <ExplanationTxt>NO REVIEW WAS OR WILL BE CONDUCTED.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PAGE 6, PART VI, LINE 19</FormAndLineReferenceDesc>
        <ExplanationTxt>GOVERNING DOCUMENTS PROVIDED TO THE PUBLIC UPON REQUEST ARE THE CNCP BY- LAWS, PERSONNEL POLICY, SAFETY PROCEDURES &amp; OPERATION DOCUMENT, LICENSE AND PERMIT DOCUMENTS, VOLUNTEER GUIDELINES AND PROCEDURES.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
  </ReturnData>
</Return>