Explore Osa Tours is owned and managed by Bahia Banano S.A., a Costarrican Corporation also in charge of the Banana Bay Marina, Hotel & Sportfishing Center located in Golfito, Costa Rica, and the Rancho Sanma located in Puerto Jimenez, Costa Rica among other properties.

Explore Osa Tours is in charge of the tour operation at the Rancho Sanma (formerly known as Rancho Tropical). The reservation office is located at the Banama Bay Marina, Hotel & Sportfishing Center in downtown Golfito.

Horseback Riding

Waterfall Rappelling

Tree Climbing

Rainforest Hiking


The Rancho Sanma is located at the pristine rainforests and the rugged natural beauty of the Osa Peninsula, we are among the most beautiful areas in Costa Rica. The ranch is next to the Corcovado National Park, this protected área haves one of the largest populations of scarlet macaws in Costa Rica. All four species of monkeys and both sloth species live in the park. Less commonly seen species of the park include the endangered jaguar and the puma.

Bordered by a small oceanfront town named Carbonera, this piece of paradise is located at the extreme tip of the wild peninsula. Known for its natural beauty and tranquility, this zone is one of the loveliest areas in the country with perfect ocean surfing waves, mangroves, rich wildlife, winding rivers, scenic views and protected rain forests.

Rancho Sanma has several grasslands for cattle with more then 300 heads of the Brahman breed, whose characteristic is the hump on its back and their long white ears. This breed is ideal for meat production in countries of tropical conditions such as Costa Rica.


Once an island floating in the Pacific, the Osa evolved in isolation until it merged with mainland Costa Rica by way of the same fault system that extends to California. Located along the Central American isthmus, Costa Rica itself is a hotspot of biological diversity, as innumerable species poured into the land bridge created when the two American hemispheres joined together. When the Osa Peninsula joined the mix nearly 2 million years ago, the area became a tropical landscape of unprecedented richness. The Peninsula is estimated to house 2.5% of the biodiversity of the entire world – while covering less than a thousandth of a percent of its total surface area – truly earning its title as the most biological intense place on earth.


Declared ‘one of the most biologically intense places on earth’ by the National Geographic Magazine, the Osa Peninsula have today, become the premier eco-tourism destination in the country.


With a large chunk of the peninsula forming the Corcovado National Park, this area has the single largest expanse of a lowland tropical rainforest in Central America and is one of the tallest rainforests in the world. Corcovado National Park is one of the richest and most diverse tropical areas on the planet. It covers nearly half of the entire peninsula and has the largest lowland rainforest in Central America.


One of the last places in Costa Rica to be settled and still sparsely populated, the Osa is covered almost entirely in magnificent, virgin rainforest extending all the way to the Pacific Ocean. Separating it from the mainland is the Golfo Dulce – one of only four tropical fjords on the planet. The Golfo Dulce is in fact the only place on the globe where populations of both Northern and Southern Humpback whales meet to birth their young.



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