The trail makes a circle around one of the two lakes, over a narrow stretch of ground that separates them. Good boots recommended, as a few places gan get wet. The sign before the trail says you have to call to announce your visit. Otherwise the trail is free and owner is friendly. Path as such is maybe not very interesting, but the picnic places between the lakes are pleasant. The later visitors report, that now the trail costs 1EUR and the picnic site use costs 2EUR. You have to call the number listed on the sign at the entrance.