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Rainforest Tree House w Hot Springs

Rainforest Tree House w Hot Springs

4 guests
2 bedrooms
3 beds
1 bath
4 guests
2 bedrooms
3 beds
1 bath

The Tree House is hand-crafted, one of 3 casitas and 2 treehouses at the Bio Thermales natural resort organically integrated into our 35 acre rainforest. Guests enjoy free 24 hour access to the 12 natural hot and cool springs pools of various temperatures and rainforest trails. 45 minute drive from La Fortuna and Volcano Arenal, 3 hour drive from the SJO airport, 4 hour drive from Liberia airport. No children under 5 years of age for safety reasons: the height of the Tree House.


Laptop friendly workspace
Stair gates

Sleeping arrangements

Bedroom 1
1 queen bed
Common spaces
2 single beds

House Rules

No smoking
Not suitable for pets
No parties or events
Not safe or suitable for infants (Under 2 years)
Check-in time is 2PM - 6PM
Check out by 12PM (noon)


391 Reviews

Check In
Alex User Profile
March 2018
We loved the tree house! Bernie and Kathy are very helpful. The variety of hot springs is incredible. Very family friendly. Kathy was very helpful with directions. Would definitely stay there again.

Brittnee User Profile
March 2018
First off, meeting Kathy and Bernie was such a pleasure! They are are super hosts and then some! All of the info they supplied us truly helped us with not only our stay at Bio Thermals but also with our Costa Rica Trip as a whole! As for the treehouse... it is everything you ho…

Jeff User Profile
February 2018
Our stay in the treehouse was fantastic. The treehouse is far more comfortable and accommodating than we expected with modern bath and kitchen resources. Sleeping with the sound of the stream beneath us was magical, as was sipping good coffee and birdwatching from our treetop d…

Jill User Profile
February 2018
If you want to experience the rainforest then this is the place for you. Kathy and Bernie were very attentive and knowledgeable. They have created a beautiful oasis just off the beaten path. We used the treehouse as our home base for many adventures. It was perfect for our fam…

Paula User Profile
February 2018
Great hot springs experience but avoid the weekend crowd. Great to experience a night in the trees with the birds and near by howlers.

Craig User Profile
February 2018
This is a very clean well run resort. Weekdays are totally different than weekends as in the locals picnic at the resort. The locals are polite and not that loud but it does get busy and the hot baths get crowded. It’s a unique place and it’s nice how they allow 24/7 access to th…

Sharon User Profile
February 2018
Costa Rica Trip - Treehouse Biothermales Hot Springs We had a truly wonderful 4Night, 5 Day stay at the Tree house, with our gracious host Kathy and Bernie. What an amazing complex Bernie created, of engineering, woodwork, and natural beauty. The system of hot spring pools and …

Hosted by Kathy & Bernie

Tucson, Arizona, United StatesJoined in November 2009
Kathy & Bernie User Profile
925 Reviews
3 References
Kathy & Bernie is a SuperhostSuperhosts are experienced, highly rated hosts who are committed to providing great stays for guests.
Pura Vida! (“Pure life” is an all-purpose greeting in Costa Rica, as well as a way of life.) Kathy and Bernie have designed Bio Thermales so guests may enjoy the beneficent hot springs and rainforest while making only positive impacts on the rainforest in our care. This is a v…
Languages: Deutsch, English, Español
Response rate: 100%
Response time: within a few hours
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