Usk Valley Walk

'Whilst less well known than the Wye Valley the Usk Valley matches it for beauty. From its source in the Brecon Beacons National Park the river flows through Brecon along a broad valley separating the Brecon Beacons and the Black Mountains. At Crickhowell it crosses from the county of Powys into the ancient kingdom of Gwent. From Abergavenny it meanders past quiet hamlets and villages; the historic market town of Usk; the former Roman fortress of Isca, now Caerleon, and enters the Severn Estuary at Newport.'