Explore the flora & fauna
Monteverde
Cloud Forest

Tour Guide
Oscar Castillo
My name is Oscar Castillo, 10 years ago I came to Monteverde to apply for a job, at that time I already finished my school to be a naturalist guide (Certified as a professional bilingual naturalistic guide by the Costa Rican tourism board license number 1090).
Since then I have worked for some leading institutions in fields such as ecotourism, conservation, and environmental education.
Nasua Tours Monteverde
Our Tours

Bird Watching

Daily Natural History Walk

Night Tour

Full Day

Private Guided Tour
Need Help Booking?
You can submit your Reservation Request here. If you are having problems booking you can directly email us at [email protected] or call us +(506) 83136679.
Testimonials
People saying
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!
Josh Pelta-Heller
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! 🙂
Dora & Peter
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!
Colin Cowing
Certificate of Excellence
Tripadvisor
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