La Amistad
Another important element is the La Amistad International Park, in Spanish La Parque Internacional La Amistad. It was declared a world heritage site in 1983. "The location of this unique site in Central America, where Quaternary glaciers have left their mark, has allowed the fauna and flora of North and South America to interbreed. Tropical rain forests cover most of the area. Four different Indian tribes inhabit this property, which benefits from close co-operation between Costa Rica and Panama."