Rainforest Tree House w Hot Springs
4 guests
2 bedrooms
3 beds
1 bath
4 guests
2 bedrooms
3 beds
1 bath
Please set the number of adults.
Please set the number of children.
Ages 2 - 12
Please set the number of infants.
Under 2
4 guests maximum. Infants don’t count toward the number of guests.
You won’t be charged yet

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.


Extra people $21 AUD / night after 2 guests
Cleaning Fee $13 AUD
Weekly Discount: 15%
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Sleeping arrangements
Bedroom 1
1 queen bed
Common spaces
2 single beds

House Rules

No children under 5 years of age for safety reasons (height of the Tree House). No smoking or flame inside the wooden Tree House or on the wooden deck. Costa Rican law forbids smoking in any public location, which includes the pools and and anywhere on the grounds where other people may be. The only smoking option is to go to a secluded place in the rainforest or the pasture outside our gate. This is Costa Rican law and will apply to any location in Costa Rica. Barbecue grill is provided below the Tree House on ground level but may not be used on the wooden deck. No glass bottles or dishes at the pools. Children must be supervised at all times in the pools or rainforest, and parents must prevent children from diving or jumping into the pools to avoid injury. Guests must be willing to open/shut the gate if they leave the property after 6 pm. No loud music or noise after 8 pm. WiFi may be available only at the reception area.

You must also acknowledge
Dog(s) live in the house



Cancel up to 7 days before your trip and get a 50% refund. Cancel within 7 days of your trip and the reservation is non-refundable.

Safety features
First aid kit
Fire extinguisher

1 night minimum stay

358 Reviews

Check In
Kat User Profile
September 2017
The check in (Johan for us) was great and he was kind enough to accommodate our late arrival and also our request to stay on premises to enjoy the pool on our checkout day and leave a bit later for our late flight so that I could also take care of some business and use the internet... This was a great tree house experience because of the design of the house. The sounds were fantastic and the moonlight and morning light and cross-ventelation were more than enough for comfort. The rains were very cozy, actually, both from the house and in the hot spring pools. Wish I could have recorded the sounds. Loved meals on the porch too. Thanks!!!

Eileen User Profile
September 2017
The tree house is set in a hot springs park with amazing thermal pools as well as some fun pools with waterslides, but certainly when we were there the area was not at all busy and we still had a sense of being close to nature. The tree house is great. It's possible to cook a simple meal there and there are barbeques available in the area below the tree house. The bathroom was amazing! Kathy and Bernie sent us lots of useful information before our stay which was really helpful. Can't recommend it highly enough.

Lothar User Profile
September 2017
Great tree house in a perfect location. In the evening you have the complete hot pools for your own. Great experience to enjoy these hot pools at night. Any time again

John User Profile
September 2017
The treehouse and hot springs were really great for our group of four. We had plenty of options for utilizing the hot springs at night, which was great after a day of hiking. Check-in went really smooth and communication was great leading up to the trip. Such a unique experience. Everything went very smooth and I highly recommend staying at Bio Thermales!

Samie User Profile
August 2017
If you want to immerse yourself in the jungle, this place is for you. The night comes alive and you'll be sleeping amongst the many sounds! We were able to find the treehouse no problem and communication was easy. It's a quick 30-40 min drive to La Fortuna for the day. A great place to escape on an adventure!

Ellie User Profile
August 2017
Our stay @ Kathy and Bernies treehouse was perfect. As soon as we booked Kathy sent us lots of information which really helped us plan our Costa Rica trip. When we arrived we were met by Eva who gave us a tour, information on local amenities ,trips and also details on all the wild life we had come to see. The tree house is beautifully built and impeccably maintained , the kitchen is small but well equipped , the veranda a fantastic place to sit and watch swooping toucans and fabulous butterflies and the mezzanine bedroom with viewing windows on both sides was an exciting viewpoint for dramatic thunderstorms. Great place to relax and with 12 natural spa pools right in the middle of the jungle my 14 year old boy was never bored. Regularly we ate out in local restaurants and were never disappointed . We booked two days with Frank the local tour guide, first day Frank took us on a river cruise and instantly we saw started spotting sloths,iguanas, turtles,herons, monkeys and very large crocodiles, the second day We went to Le Paz and saw astounding waterfalls, feed toucans and were surrounded by humming birds. Frank was fantastic a must if you want to get to know Costa Rica and the "Pura Vida " way of life. However what really stayed with us was the hard working Johan and his family and crew spending time with us and making us feel so welcome . Will recommend Bio Thermals Treehouse to all my friends it really captures the vibe of Costa Rica.

Laura User Profile
August 2017
Scenic and memorable. Nothing much to do there other than the pools. Eva was super nice and helpful.

This host has 481 reviews for other properties.

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Tucson, Arizona, United StatesJoined in November 2009
Kathy & Bernie User ProfileKathy & Bernie is a superhost.

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 very healing and lovely place and we look forward to sharing it with you. We have worked on many environmental endeavors, professionally and as volunteers. Bernie is an engineer, organic gardener, woodworker, artist and great cook. Kathy is a nutritionist, writer, graphic designer, and community and events organizer. We have also been active in many human rights efforts.

We have a friendly dog, tilapia pond and free-ranging chickens.

Languages: Deutsch, English, Español
Response rate: 100%
Response time: within a few hours
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