The instructional trail Chalupská Slať (Crip Fen) lies in the neighbourhood of the small village Borová Lada in the Protected Landscape Area Šumava. It goes through the peat-bog of the same name.

The main topic of the trail is the peat-bog and its fauna and flora.

The path of "minitrail" is only 0.3 km long. It is accessible from the parking-lot on the road Borová Lada - Kvilda (about 0.5 km behind Borová Lada). Near the entrance to the peat-bog there is an information centre of the Protected Landscape Area and National Park Šumava, in the settlement Svinná Lada.
The path of the trail leads mostly on the duckboard and it ends on the platform with a nice view of the bog-lake. Along the path there are situated information boards and also signs with names of the most important plants.
The trail is only passable for pedestrians.

Interesting places on the trail:
Bog-lake - bog-lake in the middle of the peat-bog with floating islands of peat-bog
History of peat mining in the Chalupská Slať
Fauna of the Chalupská Slať
Peat-bog - history and flora of the Chalupská Slať