mudman said:In Rhaeardr Ddu in South Wales there is a small area after the initial entrance crawl where you crawl under a large boulder that is held up by a small acro. This is called The Coffin. It's a bit nearer to the Lake District but I suspect not quite near enough. I believe there are traverses and climbs after this but I took one look at what was after this and said 'bugger this' and 'buggered off' out.
That bolder looked pretty grim 10 years ago so it either looks much worse now or it's probably likely to last a fair while longer.
It's quite a good cave actually - definitely worth the slightly scary boulder.