The Hřensko Nature Trail (formerly known as the Nature Trail of Friendship or the National Trail of Friendship of the Czechoslovak Socialist Republic - GDR) creates a circle around Hřensko, with a total length of 19 km. The circuit begins in the village of Hřensko, continues to the Pravčická gate and to the municipalities Mezní Louka and Mezná, then to Edmund's gorge and back to Hřensko.
More information, a map of the circuit and everything you need to find out Here.