Loaded with major ions — the essential minerals (Ca, Mg).
Buoyancy
Standard buoyancy
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Soft water — natural, classic buoyancy.
BicarbonatesSodiumCalcium
This piscina termal in the village of Iza, Boyacá, Colombia, fills its indoor pools with bicarbonate thermal water at 39°C. Sauna and massage round out the offering at this small Andean facility.
Insider tip — This thermal pool sits within the compact spa complex of the Iza thermal district, a short walk from the colonial town center at 2,500 meters elevation in the Colombian Eastern Andes. The bicarbonate-mineral waters emerge at a consistent temperature from the same geothermal fault system feeding the entire Iza valley. Visitors from Bogota and Tunja traditionally spend weekends here recovering from city fatigue, soaking in the heated pool while sheep graze on the surrounding paramo hillsides. The micro-climate is cool and clear, making the warm water feel particularly restorative against the Andean chill.