The mineromedicinal waters of Laias: history, mineral composition and thermal wellness in Galicia

Emerging naturally at 47.3 °C and with a history dating back to Roman times, the thermal waters of Laias remain at the heart of one of Ourense’s traditional spa destinations

The story of Balneario de Laias begins with its water. According to the Vademécum de las Aguas Mineromedicinales de Galicia, the thermal springs of Laias are believed to have been used since Roman times, forming part of Galicia’s long-established thermal tradition.

In 1877, Nicolás Taboada Leal referred to the historic baths of Laias in his work Hidrología Médica de Galicia. More organised use of the springs began in the mid-19th century, when several stone bathing pools were already used for thermal bathing.

The spa went through several transformations. In 1975, the original baths were submerged following the construction of the Castrelo de Miño reservoir. A new establishment opened in 1977, and after another period of change, the present Hotel Balneario de Laias was inaugurated in 2001.

Natural thermal water at 47.3 °C

The documented analysis of the Laias mineromedicinal water records a natural spring temperature of 47.3 °C. The water is described as colourless, odourless and tasteless.

Its mineral composition shows a particularly significant presence of sodium, together with potassium, calcium, lithium and magnesium. Its natural temperature and mineral profile make the water suitable for a variety of traditional balneotherapy and hydrotherapy techniques.

How are the thermal waters of Laias traditionally used?

The spa documentation highlights their traditional use as part of programmes focused particularly on the musculoskeletal system, including muscular discomfort, knee and hip osteoarthritis, cervical and lumbar conditions, certain tendinopathies, myofascial syndromes and fibromyalgia.

The water is also included as a complementary element in selected dermatological and healthy-ageing programmes aimed at maintaining mobility and physical function.

At Balneario de Laias, the mineromedicinal water is used through different techniques, including hydromassage baths, thermal pools, therapeutic jets, circular showers, hydrotherapy, aquatic physiotherapy and shower massage.

Today, Laias Caldaria Hotel Balneario 4* combines this thermal heritage with comfortable accommodation, Galician nature and wellness experiences beside the Miño River.

It is a destination where thermal tourism in Galicia can be understood through its most important natural resource: the water itself.