Explore the flora & fauna of
My name is Oscar Castillo. For almost 20 years, I have been working in Monteverde as a Professional Bilingual Naturalist Guide, certified by the Costa Rican Tourism Board (License #1090). Since then, I have also worked with leading institutions in fields such as ecotourism, conservation, and environmental education.
Monteverde is unique because of the high level of endemism that makes these forests one of the most biodiverse places in the world. I have been navigating Monteverde’s forests for over 20 years participating in a variety of nature field work, including bird inventory, amphibian inventory, guiding nature hikes, night tours, and birding tours. I am forever in love with nature and would be happy to share the wonders of Monteverde with you.
Nasua Tours Monteverde
Private Full Day Tour
Private Guided Tours
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This was one of the best eco-tours I’ve taken to date. Oscar is a first-rate guide, highly knowledgeable about indigenous wildlife and flora of Costa Rica and Monteverde, and about the specific preserves where you might be able to find specific species you might be hoping to see as well. He’s also just an all-around great person to spend a great day with, and he works really hard to make sure you get the most from your time with him. Highly recommend Oscar!
We booked a night tour and spotted many animals that otherwise we would have never seen. We got to know Oscar as an intelligent, friendly, interested person, with whom we had great conversations with. He is really knowledgeable and has many years of experience in his field. Really cares of providing the best, so passionate about what he does.
We would definitely recommend to take a tour with him 🙂
Thanks Nasua Tours! 🙂
Oscar is a gentleman and a scholar. He guided my wife and I on a birding tour thru Curi Cancha Preserve in Feb 2020 and we highly, highly recommend!
He taught us so much not only about birds, their songs and sounds, but also about the flora & fauna of the area as well. His passion was evident from the start of our trip and you can tell from his encounters with the other guides that he is highly respected amongst his peers. Thank you!
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