The instructional trail Třísov - Dívčí Kámen - Holubov leads in the vicinity of the confluence of Křemežský Potok (Křemže Stream) with the Vltava river on the eastern border of the Protected Landscape Area Blanský Les.

The trail acquaints visitors with natural, historical and technical interests in the region.

The trail is passable for both hikers and cyclists (except ruins of the Dívčí Kámen castle for cyclists). The path is about 3 km long with 14 informative boards. It runs from the railway stop in the settlement Třísov to the railway station in the village Holubov. The route is marked with green-white signs. The map of the trail can be seen on the first board of the trail. Printed quidebook (at administration of the Protected Landscape Area Blanský Les) is also available.

Interesting places on the trail:
Nr. 2 - 5 - the Celtic oppidum Třísov
Nr. 8 - nature reserve Dívčí kámen (granulite spit, protected species of moss)
Nr. 10 - ruins of the Dívčí Kámen castle
Nr. 11 - utilization of water power from Křemežský Potok (water power station, mills)
Nr. 13 - Adolfov Ironworks (remainders of former iron and steel works in Adolfov)