Planet route

"The planet route is an experience for the entire family. Each kilometre of the hike corresponds to one billion kilometres in the solar system, providing a glimpse of the infinitely vast cosmic dimensions. Information sign posts convey the most important characteristics for the adults. Thanks to the many fireplaces, children don't miss out either. The view of the Aare river and the crown of the Alps is a highlight for one and all."


Duration: 3h 25 min.
Distance: 11.5 km

Physically: medium

Planet trail, panoramic views

Good to know
From winter 2015, it will be accessible throughout the year via the new cable car Oberdorf – Weissenstein. The timetable you will find on

To arrive on the Untergrenchenberg you can drive by car or by the Postbus. The Postbus only runs up to the Untergrenchenberg on Wednesdays, Saturdays and Sundays in summer. Bus timetable


Brochure Hiking in the Solothurn Jura | PDF, 13.27 MB
Map Weissenstein and Grenchenberge | PDF, 754 kB
Family offers | PDF, 6.86 MB
© SwitzerlandMobility

Region Solothurn Tourismus
Hauptgasse 69
4500 Solothurn
T. +41 (0) 32 626 46 46
F. +41 (0) 32 626 46 47

In order to give you a better service this website uses cookies. By continuing to browse the site you are agreeing to our use of cookies. More info I agree.