I love Caumasee a lot and by now many people know that this lake is a true gem in the Swiss alps. It is also called the “jewel of Flims”.

Swimming, chilling out or sunbathing. Whether you’re travelling by foot or by bike, a stop at this magnificent lake is the perfect addition to your trip. It is surrounded by forest on three sides, and contains a wooded island in the centre of the lake where you can relax in complete tranquillity. Particularly breathtaking is the turquoise-coloured and cool water

🕑 Opening hours: 8 am to 5.30 pm
💵 Entrance fee: adults CHF 19.—/ kids CHF 9.50
🍝 Restaurant entry is free & open from 8 am to 5 pm
🏊‍♀️ Activities to do: Standup Paddling, pedalos, beach volleyball

Photography tips: In summer lake Caume is very good visited, meaning that it can get very crowded on sunny days. Therefore, you should either come early in the morning or rather avoid high season. If you visit in early spring or late summer/autumn you'll not have to pay an entrance fee anymore :) 
I'll highly recommend you not to stop at the escalator but rather walk a little further to the bench, the view is fantastic! Further, you should go for walk around the lake as there are many lovely places to stop and admire the lake reflection!