Lago di Caldaro is situated South of Caldaro, at the foot of Castelchiaro and surrounded by vineyards. The lake is approx. 2 km long and 1 km wide. It is one of the largest lakes in South Tyrol and the warmest of the swimming lakes in the Alpine region. Lago di Caldaro, which developed from an old river bed of the Adige, has an average depth of only four meters. This makes for pleasant temperatures of 17-19°C in spring and up to 28°C in summer.