The Urschner Höhenweg:
Absolutely ingenious MTB route. I did it a little early, when the snow melted (late snow melt on June 19, 21), with a corresponding number of snow fields, streams on the way, missing bridge, etc. Still an impressive experience.
If you do the tour from Realp / Tieffenbach, you have two options towards the end, shortly after the Lutersee: either follow the hiking trail further down to Andermatt, or stay a little higher up, and soon become steep on gravel roads and asphalt down Rrtg Schöllenenschlucht, where you meet the main road and should leave it quickly in favor of the Veloweg.
(PS: I wanted to upload more photos from the eastern part of the high trail, but it didn't work!)