Easy run from Zurich to Zug.
The last few kilometers are on asphalt with heavy car traffic. You can avoid this section and shorten the route by taking a bus from Sihlbrugg.
Roughly two-thirds into the run, there’s a wooden observation tower. Climbing the stairs is worth it for the view. At the top, you'll get a 360° panorama overlooking both Lake Zurich and Lake Zug.