Soothing — neither hot nor cold, perfect balance.
Rich in active gases or metals — a strong mineral character.
Soft water — natural, classic buoyancy.
Balneario de Las Caldas is a gracious historic spa hotel located in the hamlet of Las Caldas within the municipality of Oviedo, Asturias, where sulphurous mineral springs emerging from the limestone hills of the Nalón River valley have been part of a thermal tradition since at least the 18th century. The waters are characterised by their sulphurous composition with significant calcium and bicarbonate content, valued historically within a long thermal tradition in a region whose damp Atlantic climate has always favoured indoor thermal bathing. The balneario's handsome neoclassical architecture, set within wooded Asturian countryside, gives Las Caldas an air of refined provincial elegance characteristic of northern Spain's traditional thermal establishments. The proximity to Oviedo's Pre-Romanesque churches and the Camino de Santiago route adds cultural richness to a wellness visit to this long-established Asturian spa.