Slot Canyon Atlas

AtlasSwitzerland - Ticino

Boggera (Lower)

verified Ungraded High flood risk Cresciano, Ticino

Gneiss water canyon near Cresciano, signature Ticino combination of slides, jumps, and rappels with mandatory hydro plant coordination.

The phone call to OFIBLE is non-negotiable, do not skip it. Phone number on ropewiki is +41 91 756 66 15. Wetsuit required, water runs cold even on hot days. Bolts well-maintained.

Logistics

ManagerOfficine Idroelettriche Blenio (OFIBLE) / Cantone Ticino
PermitPermit required. Must call OFIBLE (Officine Idroelettriche Blenio) at +41 91 756 66 15 before and after the descent to confirm hydroelectric plant access.
Distance0.3
Elevation~689 ft loss
Time2.5-10.5 hr (30 min to 1.5 hr approach, 2-3 hr descent, 2-5 min exit)
TechnicalGneiss slot above Cresciano. 10 to 15 rappels, longest about 98 ft. About 3 slides and 3 jumps interspersed with rappels and short pools. Ropewiki rates 3C II (v3a3 II). Swift water hazard. Wetsuit standard, water is cold all summer.
SeasonJun-Oct
Flood riskHigh and operationally complex. Flow is regulated by the upstream hydroelectric plant. The mandatory phone call to OFIBLE is to confirm the plant is not releasing during your window.
Vehicle access2WD, optional 11 km shuttle
CrowdModerate
Coordinates46.3018, 8.9964

Sources