At the north end there are a couple of zawns, and beyond these, a steep 15m high wall. Beyond this wall, to the south, is the main bay where the rock is very loose. There is a descent to the left-hand side of the wall down slabs but the rest requires abseil access at all but low tide. The rock is quartzite, and some care is required at the top of the crag. Four routes have been recorded, in the V. Diff-S grades.
Numerous possibilities exist at all grades but the climbing has little to recommend it.
Donegal Guide, FMCI Guide Books, 1985. From Meenacross on the Maghery Scenic Loop take the road south along the western side of Trawenagh Bay. Park here and continue north along the coast for 350m to the inlet. Follow the coast to the northern end of the black wall of the bay. Donegal Guide, FMCI Guide Books, 1985.