AtlasVorderrhein

Segnes

verified Ungraded Unknown flood risk Flims, GR

RopeWiki's own description calls this the most beautifully carved canyon in the world, and backs the claim with a serious canyon: v5/a5, commitment VI, and a 60m longest rappel over just 500m.

Commitment VI means minimal opportunity to bail partway through, so this isn't one to enter marginal on time or weather. Best October or November.

Logistics

PermitNo permit or access fee documented. RopeWiki's Red Tape section for this canyon is empty, and Kanton Graubünden does not appear to publish a canyoning specific permit or registration system. Treat access as unverified rather than confirmed permit free.
Distance500m
Time6 hr
Technicallongest 60m
SeasonOct-Nov
Coordinates46.8785, 9.2404

Sources