Primary rainforest meeting the Pacific at Drake Bay on the Osa Peninsula, Costa Rica

Osa Peninsula: Drake Bay & Corcovado

Remote Jungle, Biodiversity & Marine Life

Quick answer

The Osa Peninsula is a remote rainforest peninsula in southern Puntarenas province, home to Drake Bay and Corcovado National Park. Drake Bay is reached by boat from Sierpe, about 4.5 hours by road from San Jose plus a 1 to 1.5 hour river-and-sea transfer, or by small plane. Corcovado protects 42,500 hectares of lowland primary rainforest and holds roughly 2.5 per cent of the planet's biodiversity — it is the only place in Costa Rica where all four monkey species, Baird's tapir, scarlet macaws and jaguars still share the same forest. Best time to visit: December to April is drier with calmer seas; humpback whale watching peaks July to October. A certified guide and an advance permit are mandatory for all entry to Corcovado. Cano Island Biological Reserve, an hour offshore, has the clearest snorkelling and diving on this coast.

Why Visit Osa Peninsula: Drake Bay & Corcovado National Park?

The Osa Peninsula—home to Drake Bay and Corcovado National Park—is a biologist’s dream and one of Costa Rica’s most biodiverse regions. It’s ideal for wildlife enthusiasts, scuba divers, and adventure-seeking families, offering pristine rainforest hikes, marine excursions, and remote jungle lodges where you feel completely immersed in nature.

National Geographic once called Corcovado the most biologically intense place on Earth, and the numbers back it: around 2.5 per cent of the planet’s biodiversity in a peninsula smaller than many national parks. It is also the only place in Costa Rica where all four monkey species, tapirs, scarlet macaws and — genuinely — jaguars still share the same forest.

Destination highlight — Untouched primary rainforest of Corcovado meeting the wild Pacific coastline of the Osa Peninsula. (Image 1 of 16)

Top Activities in Osa Peninsula: Drake Bay & Corcovado

Hike Corcovado National Park

Trek through primary rainforest on trails like Sirena and Los Patos, with chances to see jaguars, tapirs, scarlet macaws, and monkeys.

Snorkel at Caño Island Reserve

Take a boat trip to Caño for crystal-clear waters teeming with rays, turtles, and multi-colored fish. A top marine wildlife adventure.

Boat Wildlife Tours in Drake Bay

Cruise the Golfo Dulce at dawn to spot dolphins, whales, shorebirds, and coastal wildlife. Early-morning is best for sightings.

Jungle Night Walk

Experience nocturnal rainforest life on guided night walks, then cool off with a hike and swim at hidden waterfalls.

What to Do? Featured Tours

Recommended

Corcovado Multi-Day Guided Trek

Explore remote trails with a naturalist, stay at ranger stations, and spot rare wildlife like tapirs and jaguars.

Recommended

Caño Island Snorkel & Beach Day

Combine open-ocean snorkeling with beach relaxation—the ideal full-day marine adventure from Drake Bay.

Recommended

Golfo Dulce Wildlife Boat Tour

Sunrise or sunset tours explore mangroves and open ocean, with flashes of dolphins, whales, and seabirds.

Recommended

Scuba Diving Packages

Experience coral reefs and diverse marine life under full guide supervision. Available for all levels.

Recommended

Jungle Night Walk & Waterfall Swim

Guided night hike through rainforest edges, followed by a refreshing swim in jungle waterfalls.

Best time to visit Osa Peninsula: Drake Bay & Corcovado

Osa is lush and wild year-round, but conditions vary seasonally:

Dry season (Dec–Apr): Best for hiking, diving, and boating—with moderate rainfall and easier park access.
Green season (May–Nov): Intense jungle colors and excellent for whale-watching (Jul-Oct), but expect heavy afternoon rain.

Metric	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Avg High (°F)	91	92	92	91	90	89	89	89	90	89	89	90
Avg Low (°F)	72	71	73	73	73	72	71	71	71	71	71	71
Rain (in)	6.3	5.7	8.0	11.0	18.9	17.5	18.9	20.9	22.0	27.7	22.3	11.6

How to Get to Osa Peninsula: Drake Bay & Corcovado?

Drake Bay is reached by boat from Sierpe, about 4.5 hours from San Jose by road plus a 1 to 1.5 hour river-and-sea transfer. Small planes fly San Jose to Drake Bay or Puerto Jimenez. Land access beyond Sierpe is rough and seasonal, so nearly everyone arrives by boat or air.

Rental Car:

Drive from San José to Sierpe, then take a boat. 4x4 recommended for any land access beyond Sierpe due to rugged terrain.

Shared Shuttle Services:

Land-and-boat combinations from major towns are the most convenient and common for visitors.

Private Shuttle Service:

Personalized door-to-door service including boat transfers. Click here for private transportation info.

Best Travel Tips for Osa Peninsula: Drake Bay & Corcovado

Pack lightweight rain gear and quick-drying clothing—daily showers are part of the Osa experience.
Bring sturdy waterproof hiking boots—trails in Corcovado are wild and often muddy.
Reserve Corcovado treks early (months in advance) due to strict park permit limits.
Carry cash (USD or colones) for lodge extras and local park fees.
Use reef-safe sunscreen and eco-friendly insect repellent to protect the fragile ecosystem.

Top Restaurants in Osa Peninsula: Drake Bay & Corcovado

Drake Bay Wilderness Lodge
Dining on fresh seafood with panoramic jungle and ocean views—ideal for relaxed dinners after exploration.
La Palapa Fish Grill
A local gem serving daily catch, tropical sides, and refreshing cocktails in an open-air setting.
Aguila de Osa Restaurant
High-end cuisine at the tip of the peninsula, featuring gourmet dishes prepared with local ingredients.
El Bahia Drake Bay
Comfortable lodge dining offering Costa Rican classics, seafood, and vegetarian options beside the bay.

Frequently Asked Questions about Osa Peninsula: Drake Bay & Corcovado

Do I need a guide for Corcovado National Park?

Yes — a certified guide is mandatory for all entry to Corcovado, and permits are capped and must be booked in advance, often weeks ahead in high season. This is not a park you can turn up to. Sirena ranger station is the richest sector for wildlife and the one worth planning around.

When is the best time to visit the Osa Peninsula?

December to April is drier, with calmer seas for the boat transfers and easier trail conditions. May to November is intensely green and much quieter, with heavy afternoon rain. Humpback whale watching is excellent July to October, which overlaps the wetter months — a fair trade for many visitors.

What is Cano Island like for snorkelling and diving?

Cano Island Biological Reserve, about an hour by boat from Drake Bay, has the clearest water on this coast and the best marine life — reef fish, rays, white-tip sharks and turtles, with visiting whale sharks and humpbacks in season. Visitor numbers are capped, so book ahead; the site is closed to swimming on some sectors.

How many days do I need on the Osa Peninsula?

Three nights minimum. The transfers consume most of the arrival and departure days, and a Sirena day trip into Corcovado is a full day on its own. Three nights gives you Corcovado, Cano Island and a night walk without rushing; four or five if you want a multi-day trek.

Is the Osa Peninsula suitable for families?

For families with older children who genuinely like wildlife, yes and it is unforgettable. For younger children it is demanding: long boat transfers, humid heat, real hiking, limited medical facilities and lodges that are deliberately rustic. Manuel Antonio delivers a gentler version of the same wildlife.