| HUMBER | Large tidal estuary in northern England formed by the Rivers Ouse and Trent |
| EAST | ___ River saltwater tidal estuary in NYC |
| LEEDSCASTLE | Stronghold in Kent built on islands in a lake formed by the River Len (5,6) |
| CLEVELAND | Former county of England formed in 1974 from parts of Durham and Yorkshire |
| TSUNAMI | Large tidal wave |
| GOOLE | Inland port in the East Riding of Yorkshire at the confluence of the Rivers Ouse and Don |
| YORK | English cathedral city at the confluence of the rivers Ouse and Foss (4) |
| WIRRAL | The ____ , peninsula in northwest England bounded by the rivers Dee and Mersey (6) |
| GIRONDE | Estuary in France formed by the confluence of the Rivers Dordogne and Garonne |
| PASSAU | City in Lower Bavaria where the Danube is joined by the rivers Inn and Ilz |
| FORESTOFDEAN | Ancient royal park in West Gloucestershire bounded by the rivers Wye and Severn (6,2,4) |
| YORKSHIRE | The Ouse and Wharfe are rivers in this county (9) |
| GARONNE | River that rises in the central Pyrenees in Spain and flows into the Gironde estuary in France (7) |
| GRIMSBY | British city on the Humber estuary in Lincolnshire, founded by Vikings in the 9th Century (7) |
| NEWHAVEN | East Sussex port town in the constituency of Lewes at the mouth of the river Ouse (8) |
| IRAQ | Country served by the rivers Tigris and Euphrates (4) |
| FOREST | A region of West Gloucestershire bounded by the rivers Wye and Severn (6,2,4) |
| OFDEAN | A region of West Gloucestershire bounded by the rivers Wye and Severn (6,2,4) |
| DEAN | Forest of _, region of Gloucestershire bounded by the rivers Wye and Severn (4) |
| ELY | Cambs. city on the Ouse, and river in Cardiff (3) |
