Ober Surettasee

Ober Surettasee is a high-mountain lake in the municipality of Rheinwald (Splügen), canton of Graubünden, Switzerland. It sits at roughly 2,270 m above sea level in the Surettatal and is the upper of the two Suretta lakes, the Surettaseen. The Unter Surettasee lies below it, and the peak of Surettahorn (Pizzo Suretta, 3,027 m) rises on the Swiss-Italian border nearby.

How do you get to Ober Surettasee?

There is no road to the lake, so you walk. The standard option is a loop from Splügen (about 1,457 m). The trail follows the historic viaSpluga, climbs through the Fugschtwald forest, passes the lower lake and reaches the plateau with the upper one. The official route description lists about 13 km, 850 to 880 m of ascent and around 4.5 hours, rated medium difficulty. The loop returns via Leimtobel and Panell to the Hinterrhein river and follows it back to Splügen. Websites quote slightly different distances and times, so reserve half a day.

What will you see at the lake?

The lake lies on an open alpine plateau of meadows and rock. A jetty with a fishing boat stands on the shore. The boat is free to use at your own risk, which makes it a pleasant spot for a long break. A lake hut stands nearby at about 2,272 m. It has no catering, but in summer you can book it for an overnight stay. Bring food and water from Splügen.

Can you fish here?

The Suretta lakes are leased by the Rheinwald fishing club, and angling requires a special licence. You can get it on site by scanning the QR code on the information board.

When should you go?

At this altitude the trail is mainly open in summer and early autumn, once the snow has gone. Check current trail conditions and the forecast before setting out, because Alpine weather turns quickly. Start in the morning so you are back in Splügen in daylight.

What else is nearby?

Splügen is a historic village on the route over the Splügen Pass. A separate walk follows the Hinterrhein through the Rheinwald valley from Sufers to Hinterrhein. Mountain fans will enjoy the view of Surettahorn, whose two summits are called Punta Nera and Punta Rossa.

Frequently asked questions

Is the hike to Ober Surettasee hard?

It is medium difficulty. You need stamina for 850 to 880 m of climbing, but no climbing gear.

How long does it take from Splügen?

Officially about 4.5 hours for the 13 km loop. Allow more if you rest by the water.

Is there a mountain restaurant at the lake?

No. The lake hut has no catering, though it can be booked for overnight stays. Carry your own food.

Can I use the boat or fish?

The boat at the jetty is free to use at your own risk. Fishing requires a licence bought through the QR code at the lake.