The River Severn From Start to Finish

The River Severn

The River Severn begins on Plynlimon in Mid Wales, runs for about 220 miles (354 km), and reaches the Bristol Channel through the Severn Estuary. That makes it the longest river in Great Britain..

The River Thames from Start to Finish

River Thames

The River Thames is England’s quiet heartbeat, a steady line of water that links hills, villages, cities, and sea. It runs for about 215 miles, from a spring near Kemble in the Cotswolds all the way out to the North Sea..