Bio Thermales
Alajuela, Alajuela Province, Costa Rica
Illustration photo — not a verified picture of this exact spot.
- Location
- Alajuela, Alajuela Province, Costa Rica
- Water type
- sulfurous
- Temperature
- 40 °C
- pH
- 6.5
Water profile
Thermicity
Sedative
LowHigh
Relaxing — deep, immediate muscle release.
Mineralisation
Bio-active
LowHigh
Rich in active gases or metals — a strong mineral character.
Buoyancy
Standard buoyancy
LowHigh
Soft water — natural, classic buoyancy.
SoufreSulfuresSulfates
Bio Thermales, in Alajuela province, Costa Rica, taps sulfurous water at 40°C, pH 6.5. The facility offers an indoor bath, an outdoor rotenburo-style bath, a sauna, and massage.
Insider tip — Bio Thermales is situated on the lower slopes of the Poas Volcano drainage zone in Alajuela province, Costa Rica, channeling mild sulfurous thermal waters into eco-resort pools surrounded by highland cloud forest. The proximity to Poas and Barva volcanoes underpins the geothermal activity here. The facility emphasizes sustainable tourism, with rainforest walking trails and birding opportunities in the adjacent montane forest.
Nearby
Termales La Estrella
Ciudad Quesada area, Alajuela Province
Paradise Hot Springs
Montana du Sud-Ouest, au nord du Parc National de Yellowstone
Termales del Bosque
San Carlos (Ciudad Quesada), Alajuela
Rio Negro Hot Springs
Alajuela
El Tucano Resort Aguas Zarcas
Ciudad Quesada
Termales Del Valle
San Carlos, Alajuela
Frequently asked questions
How hot is the water?
The water runs quite hot here, around 40 °C — a sedative water that brings immediate muscle release.
What type of water is found here?
This spot features sulfurous water.
What is the best season to visit?
The most favourable period for this spot is: Saison sèche.