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Corcovado National Park
From 1 day to 5 nights, from Puerto Jimenez or Drake Bay
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Tours in Drake Bay
Horseback riding, night walk, canopy tour, bird wathing, and more.
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Caño Island from Drake Bay
Enjoy of diving or snorkeling at this beautiful Island from Drake Bay.
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Whale and dolphin watching from Drake Bay
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La Fortuna & Arenal Volcano
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Rio Celeste in Tenorio Volcano National Park
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Tours in Peninsula de Osa

Corcovado Tours from Drake Bay & Puerto Jimenez

We are locals with a lifetime experience in our area and Corcovado is one of our highlights in Costa Rica.
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Whale & dolphin watching from Drake Bay

We offer guided kayaking tours in Drake Bay, and in Sierpe Mangrove. Sport and wildlife are our goals during the activity.
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Diving & Snorkeling at Caño island from Drake Bay

This activities are done at Cano Island a biological reserve that protects endangered species of wildlife.
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Activities to do in 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.
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La Fortuna-Arenal Volcano Tours

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.
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Private tranfers all over Costa Rica

We can take you all over Costa Rica with our private transfer services. We also hace the capacity to organize guided visits in the country.
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Tours in La Fortuna de San Carlos-Arenal Volcano

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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...
Arthason
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...
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Who we are

I created Osa Great Adventure in 2012 on a Facebook business-page while I 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.

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

During my time as a tour guide, I have met the best guides and those are the ones that today work with Osa Great Adventure. Certified naturalist tour guides, some of them with 30 years of experience that will make sure that you have an experience that you will never forget.

Allan Guevara
Founder and manager of Osa Great Adventure

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