It is one of the national parks with the most caves in the country, and because of that, it is one of the most visited. It has more than 500 species of flora, 300 types of birds, with wonderful white beaches on the Catalina and Saona islands. On the coast you can find numerous places to dive and snorkel, full of coral reefs and marine creatures such as dolphins and manatees. In the land area, the beautiful beaches of the park, especially those of Saona Island, are the most important nesting place for turtles in the country.
The protected area is delimited by the La Romana-Bayahibe, La Romana-Higuey highways, up to the town of San Rafael de Yuma. Much of the terrain of the Parque Nacional del Este is made up of emergent coral rock.
The park preserves important protected archaeological sites with more than 20 ceremonial squares, 8 aboriginal cemeteries and 27 caves, along with other archaeological sites, in which cultural manifestations of the various aboriginal groups that populated the island in the pre-Columbian period have been found.