Costa Rica guide

Osa Peninsula and Corcovado National Park

Named the "Most Biologically Intense Place on Earth" by National Geographic, the Corcovado National Park is a true natural treasure. Located in the southern end of Costa Rica, this area is the one of the few primary rainforests on the Pacific coast from Mexico to South America. Tapirs, Macaws, tree-frogs, squirrel monkeys, eagles, and the elusive Jaguar make this paradise their home.

The park has an area of 41,788 hectares, and is home to almost all the species in the south of Costa Rica, many of them being endemic. In the park you can find 13 major ecosystems, including beach and cloud forest.

Parque Nacional Corcovado is a National Park on the Osa Peninsula in the South West of Costa Rica (9° North, 83° West), which is part of the Osa Conservation Area. It was established on 24 October 1975, and encompasses an area of 420 km². It is widely considered the crown jewel in the extensive system of national parks and biological reserves spread across the country. The ecological variety is quite stunning. National Geographic has called it "the most biologically intense place on Earth". Not only is the park very popular with tropical ecologists, a visitor can expect to see an abundance of wildlife.

This amazing park conserves the largest primary forest on the American Pacific coastline and one of the few remaining sizeable areas of lowland tropical rainforests in the world. Logging usually takes place in lowland areas because those areas are more accessible and contain the biggest and most valuable trees. But those habitats are also the richest. So even though still about half the tropical rainforests on Earth remain, what is left of the originally rich lowland tropical rainforests is usually too small to support the original biodiversity. Especially larger animals need a large habitat.

Corcovado, however, is large enough to support a sizeable population of the endangered Baird's Tapir. And it holds about 140 species of mammals (representing 10% of the mammal-species in America). Costa Rica as a whole is an ornithologist's dream and Corcovado in particular holds several hundred bird species. Large herds of white-lipped peccaries roam the park as well as several big cats (including jaguars, ocelots, pumas and margay). There is even a possibility that the endangered harpy eagle is still present here. The abundance in wildlife can in part be explained by the variety of vegetation types, at least 13, including montane forest (more than half the park), cloud forest, jolillo forest (palm swamp), prairie forest, alluvial plains forest, swamp forest, freshwater herbaceous swamp and mangrove, together holding over 500 tree species, including purple heart, poponjoche, nargusta, banak, cow tree, espave and crabwood. Another reason for the diversity (as with all of Costa Rica) is that it lies on a north-south corridor for flora and fauna.

There are two tracks, one coastal and one inland, and four ranger stations in the park where one can stay overnight; three at the park entrances and one at the intersection of the two tracks. One track runs Northwest to Southeast along the coast, with the Estación Sirena roughly in the middle and another track inland from there, to Estación Los Patos at the Eastern end of the park. One can fly into the park to Estación Sirena, from where one can follow relatively short loop-trails. To walk into the park one needs a reasonable fitness, at least two or three days, good planning and caution. During the wet months (July to November) parts of the park may be closed.

On the coastal track one must take into account that several rivers need to be forded. This can not be done when the water is too high, so one must take the tides into account. This information can be obtained in Puerto Jiménez. On this track most of the walking is on the beach (meaning heat and salty air) and there is little fresh water, so enough water should be taken along to avoid dehydration. An approach form the South is easiest because just North of Estación Sirena lies the Río Sirena, the largest of the rivers that need to be forded along this track. If one arrives from the North too late one is stuck because this is a dangerous river to cross at high tides. There are crocodiles and at high tide even sharks can swim into the estuary. If one starts from the station, one can get information at the station and the river is right next to it, so planning is easy. If done sensibly, the crossing is not dangerous, though. This northern coastal section is longer but less arduous than the southern section because there is more shade. However, it can only be used during the dry season from December to April because during the wet season the rivers are too deep to wade through safely.

Most animal sightings can be expected on the coastal track, with scarlet macaws (the largest population in the country) flying overhead, hermit crabs on the beach, pelicans fishing in the sea and on the sections that go slightly inland spider monkeys (take care not to get pissed on), tamandua anteaters, white faced capuchin monkeys, lineated woodpeckers and coatis (to name just a few). With luck one might even spot a tapir, even though they're nocturnal. From Estación Sirena one can follow many short tracks, on which one can also take short night-strolls into the forest with a good chance of running into a tapir. They're impressive to see (bring a decent torch) but harmless if left in peace - please do!

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• List of birds of Costa Rica
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• Arenal Volcano
• Osa Peninsula and Corcovado National Park
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This article is licensed under the GNU Free Documentation License.
It uses material from the Wikipedia article "Corcovado National Park".