Spend two days immersed in Corcovado’s Sirena sector: boat transfer from Drake Bay, guided rainforest hikes, and an overnight at the ranger station where wildlife encounters peak. Learn what to expect and how to prepare for this remote, intensely biodiverse trek.
More ways to explore the area's outdoor wonders
Dawn arrives as a warm, heavy curtain over the Osa Peninsula; the boat slips away from Drake Bay and the jungle seems to inhale as you pull toward Sirena. By midmorning you step off the skiff onto a narrow shore and a guide leads you up a path where the forest closes in — leaves brushing, insects calling, and a distant cacophony of macaws declaring territory.
Difficulty
moderate
Duration
2 days
Fitness Level
Participants should have a moderate level of fitness: able to hike 2–3 hours on uneven, sometimes steep terrain and manage river crossings.
Wildlife
History
Corcovado National Park was established in 1975 to protect the Osa Peninsula’s exceptional biodiversity and coastal rainforest ecosystems.
Conservation
Visitor numbers are managed and the park relies on ranger stations; adhere to park rules, pack out waste, and avoid off-trail travel to reduce impact.
Reserve your spot on the Pacheco Tours - 2 Days 1 Night in Corcovado Sirena From Drake Bay today and enjoy a trusted, highly rated experience designed to help you make the most of your adventure.
Pack waterproof footwear
Trails are frequently muddy and river crossings are possible; waterproof, high-traction boots will keep you mobile and safe.
Bring a lightweight rain shell
Rain can arrive suddenly even in drier months—quick-dry layers and a compact shell prevent chills during early-morning hikes.
Carry extra water and electrolytes
Two liters per day is a baseline—add electrolyte tablets to replace salts lost in humid conditions.
Follow the guide and stay on established paths
Sirena’s trails are narrow and wildlife skittish; staying with the group improves sightings and protects sensitive habitats.
Waterproof hiking boots
Keeps feet dry and provides traction on muddy rainforest trails.
Lightweight rain jacket
Compact protection against sudden tropical downpours during the wet season.
summer
Headlamp with spare batteries
Useful for early starts, campsite tasks, and power outages at the ranger station.
Insect repellent and bite-care kit
Reduces mosquito irritation and helps treat bites in a humid environment.