Corcovado National Park is located on the Osa Peninsula in southwestern Costa Rica, and is part of the Osa Conservation Area. It was created on October 24, 1975, and includes an area of ​​42,560 land hectares and 3,354 marine hectares. It is considered a very important piece in the country’s extensive system of national parks and biological reserves. The biological diversity is surprising. National Geographic has defined it as the most intense place in the world, biologically speaking, in terms of biodiversity and it is estimated that no place in the world (with a similar area) houses greater biological diversity. The park is open to the public but there are to make a reservation. This can be carried out in Puerto Jiménez, on the east coast of the peninsula. Some hotels in the area have private biological reserves within the Corcovado area. Among them is one of 36.5 hectares that borders the Corcovado National Park. There are 2 main trails, one that runs along the coast, and one inland, and 4 ranger stations: 3 at the park entrances, and 1 where the trails intersect. One of them runs from northwest to southeast along the ocean, with Sirena Station approximately halfway, from where the other trail leaves towards Los Patos Station, at the east end of the park. Currently, camping is only allowed at the Sirena and San Pedrillo stations. You can fly inside the park (arriving at Sirena Station), from where minor trails leave. To walk in the park, it is advisable to be in acceptable physical condition, have 2 or 3 days (at least), plan the routes in advance, and of course, be careful. Between July and November, some sections of the park may be closed to the public due to rain. In addition, it must be taken into account that there are crocodiles in the rivers, and at high tide there are even sharks, which swim to the estuary in search of food.