(Remember the New convention: LEFT and RIGHT bank are now as seen going upstream). Shoeburyness is on the right bank, to the north of the estuary.
17 photos of Shoeburyness, Frith
Shoeburyness is the administrative district containing South and North Shoebury.
Shoebury was probably a Viking camp in origin.
This low lying marshy area was known for a high incidence of malaria.

1809 (or before): Picture by JMW Turner -

Shoeburyness Fishermen Hailing a Whitstable Hoy, J.M.W. Turner
Shoeburyness Fishermen Hailing a Whitstable Hoy, J.M.W. Turner, before 1809