World War 2 Coastal Defences

Very little remains of the World War 2 coastal defences. The map below shows the five concrete gun emplacements spaced out along the shore and the positions of the large wooden posts on the sands.

Sketch of a gun emplacement
 

Gordon found the map, the sketch and the following description in a copy of the Over Wyre Historical Journal from 1990-91.
 

So the gun emplacements were never armed!
However some target practice did take place using artillery on the shore. Two rather imaginative targets were positioned towards the mouth of the Lune.
A Messerschmitt ME109 - or, at least, a two dimensional silhouette of one mounted high on a metal scaffold.

And a simulated submarine conning tower.