The Lake Kaltern/Caldaro, located along the South Tyrolean Wine Road, is known as the warmest swimming lake in the Alps. Measuring about 1.8 km in length and 0.9 km in width, it is also South Tyrol’s largest natural lake. Surrounded by vineyards and Mediterranean vegetation, it is a beloved destination for swimmers, sailors, and nature enthusiasts. During summer, its pleasantly warm waters make for unforgettable lake experiences.