Continue west along the north side of the voe to Mu Ness then swing north-west across the shoulder of Blouk Field above Coppa Wick. Continue to follow the cliff tops around Weinnia Ness and past the sharp ridge of Steis Point to Sel Ayre. This coastline displays numerous natural arches, sea stacks and skerries. Sel Ayre literally means seal beach and is a favourite haul out spot for seals. At the north end of Sel Ayre is the jagged pyramid of Erne’s Stack, once the home of a White Tailed Sea Eagle. These became extinct in Britain when the last one was shot in Shetland in 1918, but subsequently have been successfully reintroduced to mainland Scotland.
From the cliffs north of Sel Ayre there is a steep descent into and steep climb out of Deep Dale. Deep Dale is a glacial meltwater channel. Meltwater channels such at this are often very large relative to the streams that now occupy the valleys; such the streams are regarded as too small to have cut the valley. The ascent out of Deep Dale will take you to on to the 160m cliff top of Banks Head and a magnificent view back along the coast you have walked. The cliffs of Banks Head and the coast are sandstone, now folded, that was laid down in streams and rivers almost 400 million years ago.