A few weeks ago I found a reference to 'Bottle Beach' on the Thames Estuary at Coalhouse Fort in Essex. It is on the site of an old dump which is now eroding onto the foreshore, revealing all of its treasure.
There are tons on blackebrries, also sloes and rosehips.
This is a radar tower from the second world war, cleverly disguised to look like a water tower.
It was named as a water tower on maps to maintain secrecy.
The girlettes came along too, and enjoyed the peaceful views of the water.