Slot canyons
Narrow sandstone corridors that close to shoulder-width.
The squeeze
Slot canyons are narrow — sometimes shoulder-width, sometimes you exhale to fit through. The walls are sandstone, water-carved over a few million years, and the light comes from directly above.
What to expect
width shoulder to barely-passable water usually dry, sometimes pools rope short rappels, one or two pitches commit 2A–3B · a day out
How we beta it
Every slot route lists the narrowest point, the longest rappel, and the last exit before the technical section — so you know what you're committing to before the walls close in.