In one of the greenest corners of northern Spain, where time flows to the unhurried whispers of the Pas River, a spring bursts from the ground—regarded as a divine gift by ancient conquerors. Its warm, mineral-rich waters have preserved their pristine purity and healing power to this day. Around this natural wonder, the Gran Hotel Balneario de Puente Viesgo complex has grown—a true sanctuary for body and soul, where centuries-old traditions and modern comfort merge into one.
The town of Puente Viesgo itself, nestled in the Toranzo Valley just 28 kilometers from Santander, owes its existence to this very spring on the right bank of the river. The first records of the baths date back to the 18th century: in 1766, a modest structure for water treatments appeared here. This simple but visionary building became the starting point for a major project that, in 1843, developed into a full-fledged spa resort. Since then, the fame of these waters—officially recognized as beneficial to the public in 1869—has firmly established Puente Viesgo as one of the country’s leading balneological centers.
After its golden era, when aristocrats and prominent members of high society flocked here, the complex gradually fell into decline. A new chapter began in 1991, when Cantabrian entrepreneur Manuel Pérez Mazo undertook an ambitious restoration project that marked its revival. With the opening of a modern four-star hotel, the historic resort regained its former splendor and secured an important place on the wellness tourism map. Today, his family continues this legacy, carefully preserving the heritage of a place where history and wellbeing are in perfect harmony.
The water in Puente Viesgo is classified as hypothermal, with an output temperature of 33.8 ºC. It has a medium level of mineralization, with chlorides and sodium as the dominant elements. Experts note that these thermal waters have a positive effect on the cardiovascular and respiratory systems, and can also help with rheumatic conditions and the effects of stress.
The main attraction of the complex is the Temple of Water, a two-hour thermal circuit that features activity pools, indoor and outdoor Jacuzzis, cascades, counter-current rivers, water beds, and several types of saunas. For those seeking absolute privacy, the Cantabrian Grotto is available. Inspired by the cave paintings of Monte Castillo, this route lasts 50 minutes and is intended exclusively for adults. Another highlight is the flotation pool, where the body is immersed in a state of complete weightlessness, offering an incredible feeling of lightness.
The hotel itself consists of two buildings connected by an underground passageway. A culinary highlight of your stay is the “El Jardín” restaurant, where Cantabrian cuisine meets modern culinary trends. Guests are offered a special daily menu or a tasting set featuring dishes such as rice with lobster and shellfish, baked hake with scallops, or lamb terrine. For those seeking a comprehensive approach, there are programs ranging from one to six days, focused on relaxation, recovery, beauty, or combating fatigue.
