Balneari de Caldes de Boí

Caldes de Boí sits at 1,500 m in the Vall de Boí, surrounded by the Romanesque churches and the Aigüestortes national park. What distinguishes it is the sheer number of springs emerging within a small area, from cold to markedly hot, allowing the spa to use different waters for different treatments. Two hotels and a thermal building make up the small resort.