The Küllstedt tunnel is 1530 meters long, and a few meters before you enter the draft lets you feel where the path leads: into cold darkness. But there is an …
This section is awesome. The quality of the bike path is great. Very often there are benches to rest. The 5 tunnels are an experience. The signs are perfect. It's just fun.
The route leads through the idyllic Reisersche valley with various carved wooden figures along the way and a little further you drive through two impressive railway viaducts.