 In the 1960s a German property developer, Karl Kurt Vorlop, built a hotel complex with over 1,000 beds to take advantage of the naturally occurring thermal springs and the source, which provides the water for Valser mineral water, sold in Switzerland.After the developer went bankrupt, the village of Vals bought the five hotels in development in 1983 and commissioned a hydrotherapy centre at the middle of the five hotels on the source of the thermal springs.The spa facility was built between 1993 and 1996, designed by Peter Zumthor.