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