at l antic ) ▁coast ▁of ▁Cuba . ▁ ▁It ▁is ▁established ▁around ▁the ▁C agu anes ▁pen ins ula ▁and ▁includes ▁ 1 0 ▁small ▁c ays ▁( C ay os ▁de ▁P ied ra ) ▁that ▁reach ▁out ▁in ▁the ▁Bay ▁of ▁Bu ena ▁V ista ▁( a ▁R ams ar ▁Convention ▁site ), ▁as ▁well ▁as ▁the ▁Gu ay ab eras ▁sw amps ▁and ▁mang ro ves . ▁The ▁park ▁covers ▁an ▁area ▁of ▁. ▁ ▁Conserv ation ▁The ▁coast al ▁landscape ▁is ▁character ized ▁by ▁c aves , ▁arch es ▁and ▁nich es ▁that ▁open ▁to ▁the ▁sea . ▁A ▁total ▁of ▁ 7 9 ▁c aves ▁were ▁number ed ▁in ▁the ▁area . ▁ ▁The ▁e cos ystem ▁consists ▁of ▁more ▁than ▁ 2 0 0 ▁species , ▁ 2 4 ▁of ▁them ▁en demic . ▁ 1 1 2 ▁species ▁of ▁birds ▁nest ▁in ▁the ▁mar sh ▁and ▁coast al ▁area . ▁A ▁large ▁population ▁of ▁mar ip osa ▁b ats ▁is ▁present ▁in ▁the ▁T res ▁Dol inas ▁cave . ▁A ▁decl ine ▁in ▁mig rat ory ▁aqu atic ▁birds ▁( sp oon b ills , ▁fl aming os , ▁pel icans ) ▁nest ing ▁in ▁the ▁mar sh es ▁was ▁registered ▁here . ▁The ▁closure ▁of ▁three ▁sugar ▁mill s ▁reduced ▁the ▁poll ution ▁in ▁sw amps ▁and ▁bay , ▁and ▁numbers ▁were ▁increasing ▁as ▁of ▁ 2 0 0 7 . ▁▁ 3 5 ▁ar che ology ▁sites ▁are ▁also ▁conser ved ▁here ,