Tried to get to the Hell's Mouth boulder at Nefoedd recently. It does look good in the guidebook. After half an hour walk, then half an hour of trying to force a path through the brambles, we gave up when we hit a gorse bush that even Dawid couldn't get through. We went back and played on the boulder on the approach, which had a nice 7A trav and a 7A+ arete sitter, plus flat grassy landings. Dawid did find a way down to the beach, but he said it was quite steep, and the rest of us wanted no more sketchiness.