Sirena is the most popular station among the Corcovado National Park. This popularity is given due to the amount of animals that live within the 2 rivers that border its surroundings. Both rivers, Claro and Sirena, along with the Pacific Ocean create biological barriers for populations of several animal species. Therefore their individuals coexist in a relatively small, delimited area. These geographical conditions, and the fact that the Osa Peninsula is the place with the greatest biological intensity in the world, facilitate the possibilities of observing large numbers of fauna. It must be taken into account that the tropical rainforest is a battlefield where animals are often in an intense competition to survive, forcing the development of very advanced defence mechanisms. Mimicry and the senses are at another level. A single species can have more than 7 predators. So, despite being the best place in the world to observe the fauna of the rainforest, it is not easy to look at the animals and teamwork between the guide and tourists is essential to achieve that quest.
- Entrance fees to the Corcovado National Park
- Certified guide with optical equipment (telescope and binoculars) round-trip boat transportation, with its respective crew consisting of the captain and the assistant.
- Lunch box (Sandwich, juice, cookies and fruits).