dunes de slack at ambleteuse, in the hauts-de-france region of france.

ambleteuse beach beuvrequen binaae boulogne boulognesurmer calais channel coast coastal department district dunes english flows fort france french hauts hautsdefrance hermelinghen historical little located mahon marquise mer mount municipality next northern part pas pasdecalais place prestre region rinxent rises river slack small sur town vauban village