Τα εισιτήρια πωλούνται από το langenthal.ch – φεύγεις από το Swiss Activities.
Περί τίνος πρόκειται
Hike to the source of the Doubs starting in Langenthal, organized by Naturfreunde Langenthal. It is suitable for people who enjoy hiking; participants can expect a sporty outing in nature around the Doubs spring.