Parque Nacional Ciénaga de Zapata covers 628,171 hectares. is the main wetland in Cuba, as well as the largest (and well-preserved) of the Caribbean Islands. The Zapata Peninsula biosphere is a huge natural reserve for all manner of wildlife including local and migratory birds, lizards, crocodiles and rock crabs.
Zapata Biosphere Reserve shows a great diversity of ecosystems such as grasslands; mangrove, Ciénaga, semi-deciduous, evergreen coastal and sub-coastal forests; coastal and sub-coastal matorral and coral reefs with principal coral species and coastal lagoons. The area also supports the main populations of the Cuban crocodile (Cocodrilus rhombifer) and American crocodile (C. acutus) and birds as the great flamingo (Phoenicopterus ruber). Some 9,000 (2001) people, mostly of Spanish origin, live permanently in one of the largest biosphere reserves in Cuba. Economic activities are mainly silviculture, fisheries, community agriculture, tourism, handicraft and apiculture.
At La Boca you can see crocodiles and take a boat to the picturesque Guama, a group of tiny islands connected by wooden bridges. The area is also home to one of the largest underground cave and lake systems in Latin America.
Continuing 13km south from La Boca de Guama you reach the famous Bay of Pigs at Playa Larga. US-backed exiles tried to invade Cuba through this bay on April 17, 1961. The main museum dedicated to these events is at Playa Giron, which is 35km father south. The little village of Playa Larga makes a good base for visiting the adjacent nature reserves in Gran Parque Natural Montemar.
Fishermen can partake in bonefishing at Las Salinas, and for tarpon and snook there is Rio Hatiguanico.