Costa Rica Osa

To get to the Osa, you will likely fly into the small, dusty outpost town of Puerto Jiménez. This is the gateway to the eastern side of the peninsula, bordering the calm, warm waters of the Golfo Dulce.

The Golfo Dulce is one of only four tropical fjords in the world. Spend a day kayaking through the sprawling mangrove forests or take a boat tour to spot resident pods of bottlenose and spotted dolphins. If you visit between August and October, this gulf serves as a crucial nursery for migrating Humpback whales traveling from both the Northern and Southern hemispheres.

Corcovado National Park encompasses nearly a third of the peninsula. It is the crown jewel of Costa Rica's protected areas. Because there are no roads into the park, you must hike in or arrive by boat.

The most famous ranger station is Sirena Station, located deep in the heart of the park. You must book a guided tour; you cannot enter the park independently. Here, you will hike humid, muddy trails to spot Baird's tapirs sleeping in the mud, spider monkeys swinging overhead, and—if you are incredibly lucky—a puma or jaguar prowling through the primary rainforest.

Situated on the northern coast of the Osa Peninsula, Drake Bay is a tranquil, eco-conscious haven offering a slower pace. Legend holds that the bay was a hiding spot for the treasures of Sir Francis Drake, but today its true riches lie in its pristine rainforest and crystal-clear ocean waters.

Drake Bay serves as the perfect launchpad for boat expeditions to Isla del Caño Biological Reserve, located 20km offshore. This protected marine sanctuary offers some of the best snorkeling and scuba diving in Costa Rica, where you can swim alongside white-tip reef sharks, massive manta rays, and sea turtles in highly clear waters.

Situated at the southern tip of the Osa Peninsula, Cabo Matapalo is a raw, untouched wilderness paradise where the primary rainforest crashes directly into the roaring Pacific Ocean. It is a legendary spot for off-grid eco-lodges, surfing, and wildlife viewing.

Matapalo is famous for its massive populations of monkeys and birds. Hike through the dense forest trails to pristine, hidden jungle waterfalls like King Louis, where you can scale the rock face or watch spider monkeys swing through the canopy. Walk along the rocky beaches to watch scarlet macaws feed in the beachside almond trees.

The term "eco" is often used purely for marketing. When booking a lodge on the Osa Peninsula, look for these markers of true sustainability:

• Energy: Do they run on solar power or rely on diesel generators?
• Staffing: Do they employ local Costa Ricans (Ticos) from the surrounding communities in management and guiding positions, rather than just international volunteers?
• Food Sourcing: Is the food grown on-site or sourced from local farms?
• No A/C: True eco-lodges in this region do not have air conditioning. Instead, they rely on open-air architectural designs and ceiling fans to catch the ocean breeze.

Visiting the Osa Peninsula is not cheap, and it is not a manicured resort experience. It is sweaty, muddy, and raw. But by spending your money here, you directly fund the preservation of one of the last great wildernesses in Central America.

Looking for flights to San José and eco-lodges on the Osa? Use the GoTripping search wizard to compare your options in one place.