No matter if you start your trip from Altenburg/Castelvecchio towards lake Kaltern or vice versa: while entering the Rastenbach gorge everything becomes immediately dark and fresh, your steps carefully. Smooth rocks alternate with roaring waterfalls and clear ponds. Those who wish, can admire the nature, others instead, will like to stop by and think of some fantastic stories. At the end of the path you will leave the forest and enter the bright sun: both down, at the lake or up in Altenburg/Castelvecchio. A wonderful hike for the whole family.