Very undulating and exhausting RR Tour up to the Untreusee. I drove the tour in less than 5 hours. According to GARMIN Edge 1030, it is 1443Hm. KOMOOT reckons once again not enough, although the Edge has barometric altitude measurement.
Hard MTB round. Unfortunately I could not find the Humboldt Cave. She probably lies hidden in the forest. The tour has everything to offer - trails, up-downhills, gravel passages. But you should be aware, there are 100km and 2200Hm. RIDE ON👍🔝