
Southern Pacific Region
The Southern Pacific region of Costa Rica is one of the most biologically diverse areas in the world, thanks to its unique combination of geographic isolation, varied elevations, and abundant rainfall. This region includes the Osa Peninsula—home to Corcovado National Park, often referred to as the “crown jewel” of Costa Rica’s national parks—where tropical lowland rainforest meets coastal and marine ecosystems in a relatively undisturbed landscape. The convergence of Central and South American flora and fauna here has created a hotspot of endemism, with hundreds of bird species, rare mammals like jaguars and tapirs, and an astonishing array of amphibians, insects, and plants. The region’s complex terrain, which includes mountains, mangroves, and primary rainforest, supports countless ecological niches, allowing an exceptional range of species to coexist.