Alderford Mill 2026
Essex
The building originally monitored passing ships to see if they had an operating device which would keep them from detonating magnetic underwater mines. Now it has: a First World War museum, a Second World War (worldwide and in relation to Canvey) museum, and a research facility. There is also a display on Canvey in the Cold War.
Address: The Old Degaussing Station Western Esplanade Canvey Island Essex SS8 0AY
Mar-Sep Sun & BHol 1000-1500. Oct-Feb 1st Sun in month. Visit website or facebook for more details.