Guided Walk led by Tudor Davies A 9 mile energetic linear hill walk from Abergwesyn to Llannerch y Cawr. Follow the Gwesyn Valley up to Drygarn Fawr into the Rhiwnant Valley to Llannerch y Cawr. Start at Llannerch y Cawr car park (SN 901616) where transport will be provided. Booking is required... See more >