National Geographic called it the most biologically intense place on Earth, and you feel it the moment you step in. In Corcovado, 54,000 hectares of primary rainforest hide tapirs, jaguars, pumas, four species of monkey and over 400 birds. There are no roads, no comforts: you hike with a guide, sleep amid the noise of the jungle and cross paths with wildlife at every step. Costa Rica in its wildest, most unfiltered form.