Summertime in Graubünden means cooling off in the refreshing mountain lakes. And Graubünden has 615 of them! But be careful – not every lake is safe for splashing and swimming. Keep save in the water by following the six swimming rules set by the Swiss Life-Saving Society SLRG and the additional special regulations for mountain lakes. Once you’ve learnt the rules you can look forward to endless summer days relaxing at the many lakes, such as Lake Caumasee and Lake Lai Barnagn.
The weather in the mountains can change very quickly. Swimming during thunderstorms is extremely dangerous. Leave the water immediately!
Mountain lakes can be very cold even in summer. The water temperature should be at least 16 degrees for swimming and bathing to prevent any cold shocks or seizures.
Many mountain lakes are unsupervised. Apply extra caution here!