Cuba maintains 14 national parks and over 250 protected areas encompassing approximately 22 percent of its total territory. The Sistema Nacional de Áreas Protegidas, established under Resolution 181/2003 by the Ministry of Science, Technology and Environment, administers these zones through a tiered classification system ranging from strict nature reserves to areas of managed resource use. The network spans 12,400 square kilometers across terrestrial, coastal, and marine ecosystems. Six Cuban sites hold UNESCO designations, including three biosphere reserves and two natural World Heritage sites, a concentration reflecting the island's position as a biodiversity hotspot with roughly 6,500 endemic plant species and significant reptile endemism at approximately 87 percent.
Alejandro de Humboldt National Park occupies 70,680 hectares across Holguín and Guantánamo provinces in eastern Cuba. Designated a UNESCO World Heritage Site in 2001, the park protects the most biodiverse terrestrial ecosystem in the insular Caribbean. The area receives between 2,000 and 3,000 millimeters of annual rainfall, the highest precipitation rates in Cuba, supporting montane and lowland rainforests across elevations from sea level to 1,168 meters at El Toldo peak. The park harbors 1,302 documented seed plant species with endemism rates exceeding 70 percent in certain taxonomic groups. Sixteen of Cuba's 27 endemic bird species occur here, including the Cuban tody, bee hummingbird measuring 5 centimeters in length, and ivory-billed woodpecker last confirmed sighted in 1987. The marine extension protects 5,440 hectares of coral reefs and seagrass beds along 11 kilometers of coastline. Access requires permits from park authorities in Baracoa, with guided trails traversing approximately 6 kilometers through primary forest to waterfalls on the Jaguaní and Duaba rivers.
Desembarco del Granma National Park covers 41,563 hectares along the southeastern coast in Granma Province. UNESCO granted World Heritage status in 1999 based on the site's geomorphology, specifically the El Guafe marine terraces rising in 12 distinct levels from current sea level to 360 meters elevation over approximately 20 kilometers. These terraces formed through tectonic uplift of Miocene-era limestone deposits at estimated rates of 0.1 millimeters per year across two million years. The park contains over 500 documented caves within the karst system, including Cueva Fustete extending 16 kilometers with connections to subterranean water systems. The coastal cliff line drops vertically 100 meters into water exceeding 1,000 meters depth within 200 meters of shore. Semi-deciduous forest covers approximately 60 percent of the terrestrial area with 512 plant species recorded, 60 percent endemic to Cuba and 18 species endemic to this specific location. Archaeological sites include 72 documented indigenous settlements with radiocarbon dates placing occupation between 2,000 BCE and Spanish contact in 1492. Park headquarters operates from the town of Cabo Cruz on the southwestern boundary.
Viñales Valley in Pinar del Río Province received UNESCO World Heritage designation in 1999 as a cultural landscape. The valley floor spans approximately 132 square kilometers between mogotes, steep-sided limestone towers averaging 300 meters height rising from relatively flat terrain. These formations represent erosion remnants of a plateau that covered the region during the Jurassic period approximately 160 million years ago. Traditional tobacco cultivation continues on approximately 50 square kilometers using methods predating mechanized agriculture, with farmers curing leaves in palm-thatched secaderos visible throughout the valley. The Viñales National Monument encompasses 9,650 hectares with protection extended across 15,000 hectares in the surrounding buffer zone. Gran Caverna de Santo Tomás, Cuba's largest cave system with 46 kilometers of surveyed passages across eight levels, opens to guided tours extending 1.5 kilometers through chambers reaching 50 meters height. The cave contains petroglyphs and pictographs attributed to Taíno inhabitants, though precise dating remains unpublished. Cueva del Indio allows 400-meter boat passage along an underground river connecting interior chambers. The Mural de la Prehistoria, a 120-meter-wide painting on the face of Mogote Dos Hermanas, depicts evolutionary concepts across species but represents commissioned artwork completed in 1961 by Leovigildo González Morillo rather than historical or archaeological significance.
Zapata Swamp comprises 4,520 square kilometers across the Zapata Peninsula in Matanzas Province, constituting the Caribbean's largest wetland and Cuba's most extensive protected area. The swamp received Ramsar Convention designation as a Wetland of International Importance in 1971 and UNESCO biosphere reserve status in 2000. The ecosystem contains approximately 900 plant species, 65 of them endemic, across mangrove forests, freshwater marsh, and dry limestone forest habitats. Salinity gradients create distinct vegetation zones from coastal red mangrove stands dominated by Rhizophora mangle through sawgrass prairies inland. The area supports Cuba's highest concentrations of American crocodiles, with population estimates ranging from 3,000 to 5,000 individuals based on surveys conducted by the Instituto de Ecología y Sistemática in 2018. Approximately 258 bird species have been recorded, including 18 of Cuba's 27 endemic species. The Cuban sandhill crane, with fewer than 600 individuals remaining in wild populations, inhabits sawgrass areas in the central swamp. Zapata wren and Zapata rail occur nowhere else globally, both classified as Endangered by IUCN assessments published in 2020. The Laguna del Tesoro, an 11-square-kilometer freshwater lake, reaches maximum depths of 9 meters and supports populations of Cuban gar, a primitive fish species unchanged since the Cretaceous period. Access roads penetrate from the town of Playa Larga on the northeastern boundary, with boat transport required for interior areas.
Guanahacabibes National Park occupies the 121,500-hectare peninsula extending westward into the Gulf of Mexico from Pinar del Río Province. UNESCO designated the area a biosphere reserve in 1987. The park protects the most significant remaining tract of semi-deciduous dry forest on Caribbean limestone, with approximately 600 vascular plant species including 84 documented nowhere else. The coastline extends 140 kilometers combining rocky shore, sandy beaches, and mangrove systems. Marine protection covers coral reef formations from shoreline to the 200-meter isobath encompassing approximately 40,000 hectares. Dive sites along the southwestern coast include walls dropping from 20 meters to beyond 100 meters depth within 300 meters of shore. El Veral station at the eastern park entrance and La Bajada station at the western terminus provide ranger services and trail access. The 17-kilometer coastal trail between stations traverses primary forest requiring 2 days hiking time. Cabo San Antonio, Cuba's westernmost point, extends into shipping channels separating Cuba from Mexico's Yucatan Peninsula by 210 kilometers. The park contains over 200 caves with Cueva las Perlas extending approximately 2 kilometers through passages containing both stalactite formations and archaeological deposits. Guano harvesting from bat colonies continues under management plans, with estimated populations of 1.5 million bats across multiple species utilizing cave roosts.