Caumasee is one of the most popular places in Switzerland but also for a reason. This lake has the most intense colors of blue and turqoise, surrounded by trees and mountains. In Summer its very nice to take a swim. But during these months its also very expensive to visit. During Autumn and Winter months its free to visit though and also way less crowded.
How to get there: Start an easy 25minutes walk through the forest starting from Flims Waldhaus, then you arrive at the entrance of the lake.
Price and opening time: 8am to 5pm. Adults 19chf and kids 9.50chf
If this is too expensive for you, head over to Crestasee for an alternative.