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Mountain Lakes of the Engadine: The Finest Swimming Spots and Hiking Destinations

Journal · Nature

Mountain Lakes of the Engadine: The Finest Swimming Spots and Hiking Destinations

9 February 2026 · updated September 2026 · 3 min read · by Chesa Michel

Turquoise, cold and crystal clear: the finest mountain lakes of the Upper Engadine for swimming, hiking and wonder – from Lake Staz to the great lakes near Sils.

Contents · 7 chapters

At a glance

Well-known lakes
Lake Sils, Lake Silvaplana, Lake St. Moritz, Lake Staz (Lej da Staz)
Best swimming season
July–August
Altitude
approx. 1,770–1,810 m above sea level
Family-friendly
Lake Staz (shallow shore, easy to reach)

The valley of the lakes

The Upper Engadine is not called the “valley of the lakes” for nothing. A chain of glittering mountain lakes runs through the high valley, from Maloja to Celerina. Some invite you to swim in high summer, others are above all dreamlike hiking destinations with mirror-smooth surfaces in the morning light. Here are the finest – and what you should keep in mind.

Sunrise over Lake Sils in the Upper Engadine

Lake Staz – the swimming lake

Lej da Staz between Celerina and St. Moritz is the most popular bathing lake in the region. Nestled in the fragrant Staz forest of stone pines and larches, it becomes pleasantly warm in high summer – unusual for a mountain lake. Meadows along the shore, a restaurant and its easy accessibility on foot or by bike make it the perfect family destination. Even the path through the forest is worth a little walk.

Jetty on Lake Staz (Lej da Staz) with larch forest

Lakes Sils and Silvaplana – the great ones

The two large lakes near Sils and Silvaplana shape the landscape at the upper end of the valley. Lake Silvaplana is a world-famous wind spot for windsurfers and kiters, while Lake Sils enchants with the Chastè peninsula and the lakeside paths where Friedrich Nietzsche once walked. Swimming is possible, but the water stays cool. A boat trip on the historic passenger vessel on Lake Sils is one of the region’s finest experiences.

Hahnensee and Lej Marsch

Smaller destinations for hikers: the Hahnensee high above St. Moritz Bad and the Lej Marsch between St. Moritz and Champfèr. Both are rewarding destinations for a half-day tour, quietly located and scenically charming. The Hahnensee requires a little fitness, while the Lej Marsch is manageable for families too.

High-alpine lakes

Those who climb higher find silent mountain lakes such as the Lej da Diavolezza in the glacier realm or the remote Lais da Macun, a plateau of lakes above Lavin in the national park – crystal clear, cold and untouched. Here it is not the swimming that counts but the silence and the magnificent high-mountain backdrop. Such tours need good planning and sure-footedness.

The lakes in the morning light

When the air is still, the mountains reflect perfectly in the smooth surface – a treat for photographers. Rising early pays off: in the first light the water is often smooth as glass, and a mood hangs over the lakes that shapes the whole day. Lake Staz and Lake Sils are especially rewarding subjects.

Tips for swimming

Mountain lakes stay cool even in high summer, with Lake Staz the warmest exception. Bring sun protection – at altitude the UV radiation is intense. Respect nature reserves, especially in and around the national park, and leave no litter behind. That way the beauty of the Engadine lakes is preserved. Excursions from Bever


More inspiration in the Journal – or view the holiday apartments and check availability.

Quick answers

Frequently asked questions

Which lake in the Engadine is warmest for swimming?
Lake Staz (Lej da Staz) is considered the warmest bathing lake in the region and becomes pleasantly mild in high summer – nestled in the Staz forest between Celerina and St. Moritz.
Can you swim in Lake Sils?
Yes, though the water stays cool. The lake is best known as a hiking, sailing and windsurfing area and is overwhelming in scenery.
Which lakes are suitable for families?
Lake Staz with its shallow shore and restaurant is ideal for families, as are the gentle lakeside loops between Celerina and St. Moritz.
What should you keep in mind when swimming?
Mountain lakes stay cool even in high summer and the UV radiation at altitude is intense. Bring sun protection and respect nature reserves.
In which Engadine lakes can you swim?
Popular spots are Lake Staz (Lej da Staz) and the bays of Lakes Silvaplana and Sils. The water is alpine-fresh and warmest in high summer.
Chesa Michel in Bever

Chesa Michel · Bever

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Eight holiday apartments and studios in an Engadine house from 1786, right in the village centre of Bever – the station is a four-minute walk away.