Pillbox 020, South Bay Beach [1939- ]
The wartime map shows it at the southern end of South Bay. I took a look, but couldn't see any sign of it.
At the northern end of the beach was this concrete block that looked about the right size:
But if you look around a bit more you'll see there are lots of similar blocks:
South Bay has small concrete beach huts available for rent. There were a lot more, but for many all that remains is the concrete floor slab. So I don't think the first photos are likely to have been a pillbox.
Has anyone seen any signs of a pillbox here, either recently or in the past?