During the Second World War, the Belgian coastline was considered one of the most heavily fortified areas of the Atlantic Wall. Today, it is accessible along a stretch of 65 km. More than half of it is built-up. In a large part, the multi-storey buildings reach right up to the beach, only to drop down to the one- to two-storey eaves height directly behind them. Seen from the sea: a wall of concrete or a modern Atlantic wall.