Esterillos, Pacific beach in Central Costa Rica.

Esterillos is a 7 km Pacific beach in Parrita canton, Puntarenas, with grey sand and a tropical forest line of palms and almond trees. It is divided into Oeste, Centro and Este; Centro and Este are separated by the Bejuco River and have mangrove areas, while Oeste has rocky outcrops and small streams.

The sources document no founding date or historical events for Esterillos; the settlement grew around a 7 km grey-sand beach in Parrita canton, Puntarenas. The three sectors, Este, Centro and Oeste, are divided by the Bejuco river and by Punta Judas toward Playa Hermosa. In Esterillos Oeste, the bronze mermaid La Sirena, cast by sculptor Albino Valverde of Puriscal, stands on the rocks facing the sea.

Esterillos Oeste is known for La Sirena, a bronze mermaid by sculptor Albino Valverde of Puriscal, seated on the rocks facing the ocean. At high tide the water covers its pedestal, so the statue appears to rise from the sea. The beach is also a surfing spot, and the three sections host national and foreign tourism.

The beach lies 124 km from San José and is close to Jacó, in the Parrita canton of Puntarenas province. It is reached by road that is passable all year, and the shore is easy to access. The three sections are Esterillos Este, Centro and Oeste; Centro and Este are separated by the Bejuco river. There are many lodgings and cabins in the area, and a small airstrip.

La Sirena, a bronze mermaid by sculptor Albino Valverde of Puriscal, sits on the rocks of Esterillos Oeste facing the ocean. At high tide the water covers her pedestal, so the figure seems to rise from the sea surface rather than stand on stone.