Corcovado National Park
From 1 day to 5 nights, from Puerto Jimenez or Drake Bay
Drake Bay
Snorkeling & Diving at Caño Island
We offer the best snorkeling and diving tours from Drake Bay, Uvita, Sierpe, and Dominical
Whale and dolphin watching Tours
From Drake Bay, Uvita, Sierpe, and Dominical.
La Fortuna & Arenal Volcano
Monteverde, Cloud Forest

Tours in Peninsula de Osa

Corcovado National Park

We are locals with a lifetime experience in our area and Corcovado is one of our highlights in Costa Rica.

Whale & Dolphin Watching

We offer guided kayaking tours in Drake Bay, and in Sierpe Mangrove. Sport and wildlife are our goals during the activity.

Caño Island

This activities are done at Cano Island, a biological reserve that protects endangered species of wildlife.

Drake Bay

Bird watching, horse back riding , the night walk, canopy, and other activities that represent no impact to nature are part of this area.

La Fortuna

Here you will find all the activities that you can do in La Fortuna de San Carlos. Here the most visited areas are the arenal volcano, the hot springs, and the sloth watching tour.


A place full of adrenaline and with a wide variety of activities to do. The cloud forest awaits you.


Whale & dolphin watching, Caño Island and Corcovado can be visited from Uvita.


Discover its canals on a canoe or go checking the turtle tour in Tortuguero National Park.


Mangrove tour, Corcovado, Caño Island, whale & dolphin watching are some of its activities.

Our Blogging Area

christian o
Drake Bay, Night walk looking for frogs
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Drake Bay, night walk looking for frogs First of all Allan is an great tour guide !Very friendly and knowledgeable about Costa Rica and the different species of animals that inhabit this beautiful country. I first met Allan in Corcovado National Park while on a separate excursion, but i was planning on...
Jesper G
Great adventures with Osa Great Adventure
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Allan is a dedicated guide who loves nature and who takes time not only to show you the wildlife, he also teaches you everything you need to know along the way. Always with a smile, Allan really took good care of us and we would...
Great Adventure
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We (a small Group of three persons) were in Corcovado in November 2012 (not in 2015) for 2 days and one night at the sirena station. Allan was our guide. He grew up in Bahia Drake and know his territory very well. He will give...
Osa Great Adventure travel agency

Osa Great Adventure was created in 2012 on a Facebook business-page while its founder was still working as a freelance tour guide in Corcovado National Park, doing mostly overnight tours for different companies from Puerto Jimenez and Drake Bay.

He never thought that it was going to be the beginning of a successful company taking care of a lot of travelers from all over the world who wanted to visit Costa Rica.

Osa great adventure operates tours all over the country and offers hight quality guided tours for solo travelers as well for groups and families.

Allan Guevara
Manager of Osa Great Adventure

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