19th July 2025RailRambles CymruAug 201 min readPontypool to Abergavenny via Shell Grotto, Mynnedd Garn, Goose & Cuckoo, Castell Prydydd & Llanfoist 13 miles Strenuous 2000ft Ascent Departs: 09.13 Return: 17.35 or 18.06 Leaders: John & Lorraine