The National Park protects coral and rock reefs in 4500 hectares of ocean around Isla Ballena, south of Uvita. From "Punta Uvita" heading southeast, the park includes 13 km of sandy and rocky beaches, mangrove swamps, river mouths, and rocky headlands.
The park has a great wealth of scenic beauty, such at the beaches of grey sand at Ballena and Bahia fringed with lush vegetation, mainly coconuts trees, beach almonds, mahoes and poros. 

Other attractive sites are the Uvita tombolo, which is a rocky platform that just out into the sea and is exposed at low tide, and the rivulets that are formed in the cliffs. The coastal habitat of beaches, mangrove swamps, estuaries, rivers and ravines attracts resident and migratory birds, such as the Northern boat-billed heron, little blue heron, white ibis, greater yellowlegs, turkey vulture, and more. The sandy beaches are the nesting sites of olive ridley and hawksbill turtles during May to November. Between December and April the humpback whale migrates from Alaska, Baja California and Hawaii to tropical and subtropical waters; the humpback whale is an endangered species. The climate is very hot and humid, with an average temperature of 27.5ºC and average annual rainfall of 3500-4000 mm.

Opening hours: Daily from 8:00-16:00.