Antiguas Termas
Illustration photo — not a verified picture of this exact spot.
- Location
- Tiermas, Aragon, Spain
- Water type
- thermal
- Temperature
- 38 °C
- pH
- 7.3
Water profile
Soothing — neither hot nor cold, perfect balance.
Rich in trace elements — gentle on the skin.
Soft water — natural, classic buoyancy.
The Antiguas Termas of Tiermas occupy a singular position in Aragon, on the shores of the Yesa reservoir at the foot of the Spanish Pyrenees. The site's bathing history stretches back to Roman occupation, and its stones carry the memory of multiple eras before the valley was partially flooded with the construction of the dam. What survives is a thermal bath of rare historical resonance, set against limestone cliffs and the deep blue of an artificial lake.
Thermal water flows at 38 °C with a neutral pH of 7.3, producing a moderate, steady warmth ideally suited to long outdoor soaks in the open-air pools. Tiermas also sits along the Aragonese route of the Camino de Santiago, making it a natural waypoint for pilgrims and walkers traversing the foothills — a place where Pyrenean landscape and centuries of bathing tradition converge in one unhurried afternoon.