Rich in active gases or metals — a strong mineral character.
Buoyancy
Standard buoyancy
LowHigh
Soft water — natural, classic buoyancy.
SoufreSulfuresSulfates
Termas de São Lourenço in Manteigas, nestled in the glacial valley of the Zêzere river in the Serra da Estrela, occupies one of Portugal's most strikingly beautiful mountain settings. The sulphurous springs emerge at 48°C just a short distance from the highest point on mainland Portugal, and the spa establishment operates within the Serra da Estrela Natural Park — Portugal's largest protected area and home to unique glacial landscapes, wolf populations and traditional pastoral culture. The U-shaped Zêzere valley, carved by Pleistocene glaciers, provides one of the most dramatic alpine landscapes in Iberia. Bathing in the warm sulphurous waters of Manteigas while surrounded by the granite peaks and cloud forest of the Serra da Estrela is a therapeutic experience of exceptional natural beauty.
Insider tip — Termas de São Lourenço in the glacial Zezere valley of Serra da Estrela boasts some of the hottest sulfurous waters in Portugal, emerging at 48 degrees Celsius from granite rock formations. The spa is surrounded by the rugged peaks of the highest mountain range on mainland Portugal, offering exceptional hiking directly from the village. Treatment programs specialize in respiratory conditions, as the sulfurous steam inhalations are considered particularly effective at altitude. The valley road follows the Zezere River through a textbook U-shaped glacial corridor that is itself a protected geological monument.
