Beaches in Guanacaste are famous for their deep blue and turquoise waters. Some of these beaches offer good surfing conditions. Las Baulas National Marine Park also has an impressive coastline which is lined with mangrove forests – this area serves as a destination for nature tours and kayaking voyages.

Leatherback sea turtles use Las Baulas National Marine Park's beaches as a nesting ground, and during the nesting season visitors can come here to see these endangered animals. From March to October they lay eggs, and at certain points during this period it is possible to see baby sea turtles emerging from their eggs and making their way to the ocean.