Route Grade Votings
Total votes cast 9
10m. The deep dark (and often dank) rift is okay as far as the boulder that blocks it. The thin will be able to escape using the through route, the rest of us face a taxing exit right.
Luckily I was thin enough to fit through at the top - although I did have to push the boulder over the top of the chimney to one side. Very claustrophobic with just enough space to breathe!