​​During the war, there was a large stronghold on the western bank of the harbour channel in Blankenberge. Today, only two bunkers remain, one of which is 99% buried in sand. The remaining bunker is an artillery bunker built for an anti-tank gun that flanked the harbour channel and the beach to the east. It is a Regelbau 680, German Second World War bunker design, and is the only remaining bunker of this type.

​Today the bunker remains in very good condition; only the flanking wall has been demolished over the years. The bunker is now used as a storage room for the nearby café.

​Another element used to defend the harbour channel was the placement of an old, captured tank turret on a VF concrete structure (Verstärkt Feldmässig: a concrete structure with walls less than two metres thick). The turret was concealed from view by stacking stones against it and covering it with earth. Since groundwater cannot reach the metal, it is assumed that the turret is still in good condition.