estuary | Blackwater | Thames Estuary | Severn Estuary | River Blackwater, Essex | River Blackwater | Gironde estuary | Munster Blackwater | Dee Estuary | Blackwater River | Severn estuary | River Blackwater, Cavan and Meath | Estuary English | Ecology of the San Francisco Estuary | Taz Estuary | Shannon Estuary | River Blackwater (River Loddon) | Kingsbridge Estuary | Hurst Castle And Lymington River Estuary | Estuary | Charlotte Harbor (estuary) | Blackwater River (Virginia) | Blackwater River (Florida) | Blackwater river | blackwater river | Blackwater, Isle of Wight | Blackwater, Hampshire | Blackwater fever | blackwater fever | Blackwater Creek |
Most of the district is the Dengie peninsula but a significant area is also the area above the Blackwater Estuary, bounded by the River Blackwater to the west until near Kelvedon, the boundary then continues south of Tiptree to the Salcott inlet on the Blackwater Estuary.