Irish Sea Humber Estuary The Solent The Wash
River Trent River Severn River Great Ouse River Thames
Upper Avon River Wye Lower Avon River Stour
River Spey River Tweed River Tay River Clyde
River Loddon River Kennet River Lea River Darent
River Thames River Great Ouse River Trent River Severn
River Trent River Thames River Great Ouse River Severn