Location ✦ Claro
Region ✦ Ticino
Country ✦ Switzerland
Length ✦ 1100m
Vertical rise ✦ 460m
Difficulty ✦ v5-a4-III
Max abseiling ✦ 55m
Duration ✦ 5h to 6h
Interest ✦ ★★
Access to the place
Hiking to the start 1h
From the bridge, take the winding road upwards and once in the village, take the forest path which climbs gradually, marked with orange dots and white and red Swiss markers. After about 30′ you cross a bridge over the canyon bed. Climb another 30′ or so to branch off onto a path marked with an arrow and 2 blue waves, indicating the start of the canyon 5′ further on.
Course 4h à 5h
The canyon descends from east to west over a total distance of more than 1km, with a vertical drop of 460m. The equipment in place is satisfactory, with rappels mostly on 2 points.
The first part is a series of fairly short obstacles, except for the big, slippery 55m waterfall, which is followed by a tricky 15m intermediate belay. At the end of this sequence, you arrive at the small approach bridge, which marks the halfway point and provides an easy escape route.
The second part opens out into the valley with a series of vertical waterfalls over 120m long (50m, 6m, 25m, 40m), visible from the campsite. We then return to the woods to finish with a number of more obstacles, including a magnificent almost-final 40m abseil in the hollow of a well-watered fissure that takes us into a basin with sculpted walls.
Before setting off, call the Infoline on +41 91 756 66 15 for information on water release forecasts for the upstream dam.
Immediate, as you exit directly to the bridge and parking lot.