A strenuous high-level route visiting the principal summits of the Arans – Pen y Allt Uchaf, Gwaun Lydan, Aran Fawddwy, Erw y Ddafad-ddu, Aran Benllyn, Gwaun y Llwyni, Waun Camddwr, Glasgwm & Pen y Bryn-fforchog
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