Τα εισιτήρια πωλούνται από το xn--kltenetzwerk-gcb.ch – φεύγεις από το Swiss Activities.
Περί τίνος πρόκειται
Cold-water bathing at Lake Biel is an event in Biel for anyone who wants to try swimming in cold water or experience it together with others. It is aimed at people looking for a simple outdoor activity.
