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Banhs de Tredòs

Tredos, Val d'Aran, Catalonia, France
Banhs de Tredòs
Location
Tredos, Val d'Aran, Catalonia, France
Water type
sulfurous
Temperature
38 °C
pH
6.5

Water profile

Thermicity
Neutral
38 °C
LowHigh

Soothing — neither hot nor cold, perfect balance.

Mineralisation
Bio-active
LowHigh

Rich in active gases or metals — a strong mineral character.

Buoyancy
Standard buoyancy
LowHigh

Soft water — natural, classic buoyancy.

SoufreSulfuresSulfates

Deep in the Val d'Aran, eight kilometres along the Aiguamòg river, the Banhs de Tredòs occupy a site used since Roman times — a bust of the goddess Isis found here attests to it. For centuries reduced to a simple shelter visited under medical prescription, the baths only got their first building in 1885, expanded with an upper floor in 1904 and a chapel in 1908.

Closed from 1944 until the mid-1990s, the establishment has since reopened in its mountain setting, fed by sulphurous, sodic water rich in sulfur and sulfobacteria. Listed in Catalonia's inventory of architectural heritage, the site combines Pyrenean history with a thermal stay beside the Aiguamòg.

Insider tip — Banhs de Tredos are traditional thermal pools nestled high in the Val d'Aran, the only Occitan-speaking valley in Spain, flanked by 3000-meter Pyrenean peaks. The sulfurous springs at 38°C emerge near the Garonne headwaters, offering a wild alpine backdrop matched by few spas in southern Europe. Arrive via the road from Viella in the early morning to catch the peaks reflected in the still pool surface.
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Frequently asked questions

How hot is the water?
The water is neutral here, around 38 °C — a perfect balance, neither too hot nor too cold.
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: Toute l'année (idéal automne-hiver).