A passage in a rock. At first I thought I wouldn't be able to pass, we had to take off our backpacks and it was a bit awkward to get mine through the hole. But you have to go through the hole, there isn't any going left or right. Before the hole there is some definitely close-to-the-edge-do-not-fall walking over a 30m drop. Nice though, possibly the nicest part of the challenging more than 600m climb to the pass.