An old refuge at the top of the Rhinsberg (in fact, it makes the mountain a little higher). There is no official way up. However, it has a clearly visible …
There's nothing to see here. What's special about the Gubrist is that you don't normally hike over it, but rather drive through the motorway tunnel that runs almost directly beneath the summit, one of the busiest routes in Switzerland.
Only an information board and the castle hill are reminiscent of the old fortification, but the area is beautifully blessed with wild plants and is worth a little detour.