On a beach of the Pointe de Montluçon, on the Isle of Oléron, few WWII bunkers of the Atlantic Wall fell from their dune and take the direction of the sea. In 2012, the sea level on the beach was the same one than in 1944-45 but today, it's most advanced and the dunes are eroded by the waves, two years ago, those bunkers were still on the dune.

This is a photo of the bunker on the right taken the last year: http://www.furaffinity.net/view/14629776/