Note that you don't necessarily need to go through Potton Bridge to use the Havengore route between the Roach and the sea but you do need to go through Potton Bridge (and not Havengore) if you want to circumnavigate Potton Island in a boat with fixed mast. A wayfarer with lowered mast will easily pass under Potton Bridge even when it is in the 'closed' state but it is questionable whether it could pass under Havengore bridge when this is closed. Maybe with careful timing it would be possible for a small boat with minimal 'air draft' to squeeze under the bridge then cross the shallows on the other side but I am not sure about this, never having tried it.
Riverside Village Holiday Park (Nearest campsite to Paglesham)
Wallasea Island
Rochford
Essex
SS4 2EY
01702 258297(t) 01702 258555(f)
Paglesham Boatyard
01702 258885
Crouch Harbour Authority
01621 783 602 (Mornings 9.30 to 11)
Essex Marina 01702 258 531
Plough and Sail Public House (At Paglesham East End)
01702 258242
Punchbowl Public House (At Paglesham Church End)
01702 258376
The Chequers Public House (At High St. Canewdon)
01702 258251