What is recorded here
Great Cob Island is a small tidal island located in the Blackwater Estuary in Essex, historically associated with the defences of the River Blackwater during the English Civil War. It is notable for its connection to the remains of a 17th-century earthwork fortification, used to control navigation and protect strategic river access.
This does not grant access. Check current paths, opening conditions and ownership before entering.
Places near here
Old Hall StileHeritage place · 552 yd
Old Hall SaltingsHeritage place · 1359 yd
Tollesbury Wick MarshesNature reserve · 1502 yd
LightshipHeritage attraction · 1.0 mi
Old Hall MarshesNature reserve · 1.0 mi
Cobmarsh IslandIslet · 1.1 mi
Seat with a view over St Peter's WellOld or holy well · 1.5 mi
The wreck of the Nanaloa, West MerseaShipwreck · 1.5 mi
St Peter's WellMemorial · 1.5 mi
Mersea Island MuseumMuseum · 1.7 mi
Tip of Pewet Island from Bradwell-on-Sea, Essex, with Blackwater EstuaryIsland · 1.8 mi
Colourful beach hutsBeach · 2.0 miOther information
Photo: Glyn Baker · CC BY-SA 2.0