Heidsee

Heidsee is a small mountain lake at Lenzerheide in the municipality of Vaz/Obervaz, canton of Graubünden, Switzerland. It sits at roughly 1,485 m above sea level between the villages of Valbella and Lenzerheide, and its Romansh name is Igl Lai. With a surface of about 0.41 km², it is easy to walk around in an hour. In summer people swim and paddle here, and in winter the shore becomes a flat walking route.

What is the lake like?

The water is split into a larger northern basin and a smaller southern one, separated by a causeway. The surrounding high valley turned into a winter sports area during the second half of the 20th century, so the lake sits right in the middle of the resort rather than on its edge.

How do you get to Heidsee?

The easiest start is the car park by the lake, which is the usual trailhead for the shore loop. You can also walk in from Valbella or Lenzerheide, since both villages are a short distance from the water. The valley is reached by mountain road from Chur, and local transport links the settlements.

What can you do here in summer?

• Walk the shore loop. The circuit is about 3 km, hugs the water and has no significant climbs. It is easy and stroller-friendly, which makes it a favourite with families.
• Swim. In summer the water warms to above 20°C.
• Try water sports. A water sports centre rents out windsurfing gear and pedal boats, kayaks, rowing boats and stand-up paddleboards, and runs sailing courses.

What about winter?

When the lake freezes, flat winter walking routes run along it. One of them, 2.6 km long, links Valbella Canols with Lenzerheide La Riva. Step onto the ice only once it has been cleared and officially opened for use. A cross-country ski trail also follows the shore towards the Luzius meadow in Lenzerheide.

When should you visit?

Come in midsummer for swimming and boating, when the water is warmest. The loop walk works well from late spring through autumn. For winter walks or skiing, aim for the heart of the season, when the ice is thick and the routes are prepared.

Frequently asked questions

Can you swim in Heidsee?

Yes. The water passes 20°C in summer and a water sports centre operates on the shore.

How long is the walk around the lake?

About 3 km with almost no elevation gain. The path is easy and suitable for strollers.

Is it safe to walk on the ice in winter?

Only on ice that has been prepared and opened. The winter route from Valbella Canols to Lenzerheide La Riva is 2.6 km.

Where is the lake, and what is its Romansh name?

In Vaz/Obervaz, between Valbella and Lenzerheide in Graubünden. In Romansh it is Igl Lai.