The jewel in the crown of the Castilla Termal trilogy of hotels is the 79 room, Monasterio de Valbuena in Ribera de Duero: a luxurious wine and spa hotel situated over 18,000 square metres in the perfectly preserved, 12th century Cistercian monastery of Santa Maria. As you would expect with a monastery setting, there is an overwhelming sense of peace and calm, not least in the spa area, which boasts several thermal pools over a staggering 2,000 square metres, 16 treatment rooms, a children’s pool and a water circuit. There’s little wonder that this was the first spa hotel in the greater Castilla y León region to receive five stars. The water here is said to have healing properties, which, within the monastic architecture and with the history that sounds the place, ensures a totally unique experience for visitors. It is also remarkably child friendly.