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Caumasee, Flims

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Water Body Nature / Park
Caumasee is a lake near Flims, in the Grisons, Switzerland. It is one of the lakes on the Flims Rockslide deposits. The lake is fed from underground sources. Its surface area is 10.3194 ha.The level of the lake varies by approximately 4 to 5 meters along with the varying underground water flow during the year, hence reaches its minimum by the end of April when snow melting in the mountains increases. A maximum level is reached by mid July but may be topped in August even after previous falling due to summer rain. The very western bay never freezes in winter, probably showing a maximum water flow in this area.When the lake is at a low level, with a small volume of water, it warms up sooner than most lakes in the region, so people can be seen starting to swim the lake in April while bigger lakes even in lower areas of Switzerland remain rather cool. Water temperature in summer is at an average 21 Celsius, with a maximum around 24 Celsius.The lake is located in a huge Forest that was allowed to remain on the agriculturally useless debris area of the biggest prehistoric rockslide in the alps region and can only be reached by a footpath, possibly using a funicular built in 1939, refurbished in 1988 on its original tracks . The walk from the edge of town to the funicular takes about 10 minutes.Flow SystemAs close as 500 yards to the Caumasee is another dell and altering lake, called Lag Tuleritg, which is just about level to the Caumasee; it is just 18 Meters higher. This lake dries out completely in autumn and remains empty until being filled by a small river of just about 800m in length, covering some 100 meters difference in altitude. That river will start flowing around May, depending on temperatures and snow melt rate in the mountains. Its origin is another lake, Lag Prau Pulté, which is fed by underground water only in spring, disappearing in autumn and staying dry all winter. During a cold period in spring, water that entered the basin of this lake may disappear again as snow melt decreases and all water remains in the underground flow. Due to its origin, the water of both lakes is grey all summer until the level starts to go down in autumn. In Lag Prau Pulte one can see another special effect caused by air being forced out of the underground; this is causing the lake not only to remain grey but to frequently produce bubbles and therefore different colours can be seen on the surface.
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Reviews
TripAdvisor Traveler Rating
246 reviews
  • The access to the lake is very easy. Good idea for a sunny day. Take your swimsuit and a towel. And swimming glasses as well.  more »
  • It caters for family for an easy leisure walk around 45mins and all walk are flat and easy. Else you can walk for 2-3hrs to Laax or Flims if you can handle it. From May you can hire a bike or even e-b...  more »
  • I was at Caumasee last July 2016 and I'm really impressed. Here you can feel the pure nature, like nobody touches this place. The so clean water and air make the feeling that you are in heaven. For su...  more »

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