Castilla Termal - Palacio de Avellaneda

Sanctuary Woven with History: In the charming village of Peñaranda de Duero, in the heart of Spain's renowned Ribera del Duero wine region, the magnificent Palacio de los Condes de Miranda—a 16th-century Renaissance landmark designated as a Cultural Heritage Site—has been transformed into an exceptional wellness destination. Here, history, craftsmanship and tranquillity come together to create an atmosphere of authentic luxury and timeless serenity. Every space has been designed to invite guests to slow down, reconnect and experience wellbeing in harmony with the rich heritage and natural beauty of its surroundings. Wellbeing Inspired by Healing Waters. The waters of Palacio de Avellaneda have been officially recognised as thermal mineral-medicinal oligometallic waters by the Regional Government of Castilla y León, following comprehensive physicochemical and medical-hydrological studies. Naturally low in mineral content (268 mg/L), these waters are particularly rich in bicarbonates and calcium and emerge at a constant temperature of 20.6°C. Their unique composition forms the foundation of a wellness experience centred on restoration, balance and the therapeutic power of nature, offering guests a truly authentic journey of renewal.