panoramic suspension bridge sigriswil

2012 above adventure adventurous alps architecture attraction beautiful beauty blue bridge built cable cables clouds connect construction crossing day daytime distance down electricity engineering europe exists exploration expressway forest forrest gunten hanging height journey known lake landscape lines located long love measures metal meters mountain mountains new outdoor panorama panoramic peak scenic see sigriswil sky small snow steel structure sunny suspension swiss switzerland thun time tons tourism towards trail travel traverse trees unite valley view village weeks weighs wire wires