The gently undulating hilltops are reflected in the emerald-green lake water. Swimmers swim their lengths, and water sports enthusiasts are out and about on their SUPs, canoes and sailing boats on the lake. Lake Brennsee is a popular summer destination and is known for its reliable thermals, which sometimes leads renowned surf magazines to mention the small, fine bathing lake in the same breath as the Italian surfer's paradise of Lake Garda.