This coastal extends as far as the Nosara and Ostional beaches, to the mouth of the Río Nosara and Ostional village. The reserve is a strip 8 km long and only a few meters wide. The protected land has an extension of 352 hectares and 587 hectares of sea. The main attraction is the annual egg lying of the Lora Turtle in Ostional Beach, whose sands are next to Nancite, in Santa Rosa National Park, they are the mist important and preferred areas in Costa Rica where this phenomenon occurs. The nesting period is from June to November, and is more intense between August and October. The rocky Punta India, in the northeast area of the protected area, has several natural swimming which are home to an abundance of sea creatures such as Anemone, sea urchins, Star fish, crustaceans and fish. Along the beach there are almost transparent Ghost Crabs, as well as crabs, red crabs and different varieties of lizards. The vegetation is dispersed around the beach and basically consists of deciduous trees such as Jazmine de las Antillas or frangipani and cactus. The best time to see the turtles is from May to December, when there an annual rainfall of 2.000mm is registered; its average temperature is 28°C. There is a biological investigation station that belongs to the  University of Costa Rica; and there is also a local committee of local guides, you can call this number for more information Tel (506) 2682-0428, entry is   2 US$ for nationals and 7 US$ for foreigners, to be paid at a small office at the entrance to the park, its timetable is from 5:00 a.m to 12:00 p.m (24 hours) from Monday to Sunday, if it is the nesting season then you can only enter via this entrance and there are always people guarding the area. You will need to be careful as there are strong currents that mean this beach is not suitable for swimming.

How to arrive and leave

By Car

The refuge begins in Nosara beach, 8 km to the south east of Ostional beach.  The road is not asphalt but it’s transitable, but you will need to cross several streams and during the rainy season you will need a 4X4 and it is not always possible to pass. To follow the route between the village and Nosara beach you will need to turnoff shortly before arriving at La Paloma supermarket. After driving for 400 meters, take a right turn and continue of a further 400 meters and then cross a bridge over the Río Nosara. There you will find a triple crossing; take the right turn and continue for another 1.2 Km until you get to a new triple crossing, you will need to take a left turn here. Drive for a further 6km north until you reach Ostional. The road that runs from Santa Cruz shortly before Paraíso, and that runs to the south until you get to Ostional, is in similar conditions: it is transitable during the dry season, although you will need to cross several streams, but in the rainy season you will need a 4X4 and it is not always possible to cross.

By Bus

The route from Santa Cruz to Ostional leaves everyday at 12:00 m.d, from the Central Market, passing by the village of  27 de abril, Río seco, Lagarto beach, Marbella, and Juanillo and Ostional, the journey takes 2:30 hours, and costs 2.30 US$. Leaving Ostional at 5:00 a.m, departing from opposite the Cabinas Guacamaya.