OstionalCostaRicaNationalReserve constitutes one of the two most important nesting sites in the world for sea turtles. Here, on 8 km of sandy beach, the turtles prefer only a small area of 900 meters to lay their eggs.
It's a must from July to November
Large numbers of turtles arrive from July to November, usually at night, during the last quarter of the moon. The CostaRica Ostional National Wildlife Refuge was officially created in 1984 but was declared a protected area in 1982.
The refuge was initially construed as being 200m wide from Punta India to the mouth of Rio Nosara. This area was increased to include the 200m strip to Punta Guiones in 1985. Finally, in 1992, with the institution of the new "Wildlife Law", came the final definition of the refuge and in 1993 the amplification to the three mile maritime limit as it is today.