A might-have-been view of the beach I stayed by in Alderney with a monolithic observation post or direction finding tower looking like a beached ship. Both postcards bought in St.Annes but separated by about 48 years, postage on one tuppence ha'penny. In fact, there seem to be so many fortifications from different eras on the island that this view is not beyond the realms of possibility. Interestingly, the tower is keeping watch inland, over events in the island rather than out to sea for potential attacks.
I'm wondering about calling this "Run Aground".