Nice hike, quite popular, which comes to a scenic mountain lake, covering a height of about 500 m.
The route can be traveled in summer, or with snowshoes, even in winter:

Access

To get to the starting point, reach Palù del Fersina, Val dei Mocheni, going up the SP8.

Then take the road that goes to Località Frotten, until you reach a large car parking area:

Route

Always follows path 325. In the beginning it goes up not so steep, crosses a small bridge, then a bridge:

then another small bridge. The the trail turns right, more steep, and then turns left near a private hut:

From here, the trail goes up among meadows and woods, sometimes steep, until it reaches the lake:

in the immediate vicinity is the refuge:

From the lake you can climb, continuing along path 325, to the Forcella del Lago and Pizzo Alto, a peak at an altitude of 2264 m.
Going up you can see the lake and refuge from above:

It is also possible, by following path 324, or at a higher altitude, by path 343, to reach Rifugio Sette Selle.

Return

Same trail.