Audio Guide of Sirena Trail

Corcovado National Park, where Sirena Trail is located, is open daily from 7:00 a.m. to 4:00 p.m. To get there from Puerto Jiménez, you can take a boat from the pier or hike the trail from La Leona (approximately 4–6 hours); it is recommended to book with local guides or contact SINAC at +506 2735-5036. More details are available on the official SINAC website.

Admission to Corcovado National Park costs around $15 USD for foreign tourists (children $5 USD) and is paid at the station. It is not free, but it includes access to trails such as Sirena; check updated prices at the ticket office or online. See the SINAC rates page.

It is recommended to allow at least 4–5 hours for the main out-and-back trail, leaving time for wildlife watching. If you plan to explore more areas around Sirena Station, a full day is ideal so you do not have to rush. Bring water and snacks to keep your energy up during the hike.

Sirena Trail is part of Corcovado National Park, established in 1975 to protect one of the most biodiverse areas in the world, with primary tropical rainforest and habitats for endemic species. Culturally, it is significant for Indigenous communities such as the Bribri and Boruca, who have lived in the region, and it represents conservation efforts against deforestation. It is also a key site for ecological research on the Osa Peninsula.

The dry season from December to April is ideal, with less rain and better wildlife visibility. Visit early in the morning (around 7:00 a.m.) to avoid the heat and increase your chances of seeing monkeys, birds, and other animals active at dawn. Avoid the rainy season from May to November if you do not tolerate mud well.

Unfortunately, the trail is not accessible for people with reduced mobility due to the uneven terrain, roots, and slopes in the tropical rainforest. Visitors with limitations are advised to choose flatter areas near Puerto Jiménez or consult guides for adapted options. Contact SINAC for accessibility information within the park.

Nearby you will find Sirena Biological Station with more trails, Sirena Beach for relaxing and spotting turtles, and the Sirena River for kayaking. Around Puerto Jiménez, visit Corcovado National Park more broadly or Caño Island Biological Reserve. Explore options at Visit Costa Rica.

Bring insect repellent, sunscreen, comfortable hiking shoes, and at least 2 liters of water per person; do not leave trash behind in order to preserve the ecosystem. Hire a certified local guide to identify flora and fauna, and check the weather before you go. Book in advance during high season through ACToR for organized tours.