River Bann River Foyle River Lagan River Erne
River Shannon River Trent River Shannon River Thames
River Tyne River Aire River Ouse River Tees
River Aire River Ouse River Great Ouse River Derwent
River Liffey River Blackwater River Lagan River Shannon
River Calder/River Aire River Welland/ Gt Ouse River Severn/River Avon River Ouse/River Trent
River Trent River Ouse River Dee River Don
River Liffey River Blackwater River Slur River Shannon