Caumasee, Alpine lake in Flims, Switzerland.
Caumasee is an alpine lake in Flims with crystal-clear turquoise water surrounded by thick forest and featuring a wooded island at its center. The water reaches depths of about 30 meters and offers swimmers and visitors plenty of space to enjoy the water.
The lake formed during the last ice age and sits within deposits from one of the largest prehistoric rockslides in the Alps. This geological history continues to shape the landscape and the unique character of the water today.
The name Lag la Cauma comes from the Romansh language and reflects the linguistic heritage of the Grisons region. Local guides and signage around the lake keep this regional naming tradition alive for visitors.
The lake is accessible via a wheelchair-friendly footpath that is easy to walk and leads to swimming areas. The Caumasee-Lift funicular runs from May through October, making it easier for visitors with mobility concerns to reach the waterside.
The lake experiences natural water level shifts of about 5 meters throughout the year due to its underground water source system. Visitors who return at different seasons notice how these changes affect the shoreline and the overall appearance of the water.
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