Route Maintenance – Who ensures that climbing routes are properly maintained, and what role does communication with the developers play? We follow the @‌re_bolting association, which supports the sustainable maintenance of climbing routes in Switzerland. The members of the association give us insights into their work, and we meet Michel Piola and Daniel Anker, who developed the route "Le Chant du Cygne" on the north face of the Eiger in 1991. 🎥 @‌trinipix_postproduktion #Petzl #Rebolting #acces