River Llugwy - The River Llugwy is a tributary of the River Conwy that has its source above Capel Curig in Snowdonia. The average annual rainfall in the catchment of the Llugwy is the highest recorded in England and
Afon Glaslyn River - The Afon Glaslyn is a river in Snowdonia, Gwynedd, North Wales. It has its source in Llyn Glaslyn, a lake in a cwm on the eastern slopes of Snowdon. The Afon Glaslyn then passes through Llyn Llydaw on
River Tywi - The Afon Tywi (Welsh) or River Towy (English) is the longest river which entirely runs through Wales. The total length of the River Tywi is 68 miles. Its numerous tributaries include the River Cothi,
River Taff - The River Taff It is known as the Afon Tāf in Welsh. It rises as two rivers in the Brecon Beacons - the Taf Fechan (Little Taff) and the Taf Fawr (Big Taff), before joining to form the Taff north of M
River Severn - The River Severn (Afon Hafren) is the longest British river, at 219 miles long. it rises at an altitude of 610 metres on Plynlimon known as Bryn Cras in North Wales, in the Cambrian Mountains. For abo