Kilnsea, relics of the First World War
Kilnsea sits on the Humber estuary and has been used in the past as a place of fortification, to guard against invaders. In 1915 Fort Godwin was constructed of concrete. An artillery battery with two big guns, it was pressed into service again during the Second World War but was decommissioned afterwards.
Since then it has gradually been broken and claimed by the sea. Not much remains now, the cliffs have eroded right back and the concrete hulk of the gun emplacement lies isolated.
On the cliffs, high above the beach you can still see a concrete sound mirror used for detecting ships before radar was invented. I am including this picture as it is not on the video