Bettingberg Tunnel East Portal

The 730 meters of the tunnel can be quite cool and long. Part of the way is gravel

Be sure to take a (good) flashlight with you! The tunnel is over 700m long and makes a bend - after about 100m you can't even see the entrance and it's pitch black! If you've watched too many horror films, you have to show your nerves here! ;-) In addition to the dark, it is very cool in the tunnel and it drips from the ceiling.
Coming from the west portal, the first half of the path is paved - then there is a wall with a door (another obstacle for people with weak nerves!) - and the second half is a gravel path.
The tunnel is closed from October to April due to the bats. We were there in July - but didn't see any!

Bettingberg tunnel - very nice