The park’s main attraction is the Leatherback Sea Turtle nesting, which is the largest such nesting ground in the world, and the sea turtle itself is an endangered species that is protected in Costa Rica.
Within the refuge, another big attraction is the mangrove with full grown trees. The most common mangrove types are: red, black, white, and tea. These mangrove forests are an optimal place for fish, crustaceans and mollusks to thrive. While reptiles, amphibians and birds are also abundant.
There are tours to observe the Leatherback sea turtle nesting and to explore the Tamarindo Estuary.
From San José, drive north toward Guanacaste to the Limonal junction. Turn left at the Tres Hermanas Restaurant, continue to the La Amistad Bridge and then follow the road to the Belén de Carrillo junction. There, turn left and follow the highway until you reach Huacas. Once in Huacas, go straight to the Las Baulas National Marine Park for approximately 9 km, passing through Matapalo, until you reach your destination.