To get there from Dunkerque, take a bus '''A''' (i.e. from the city center/railway station), going towards Loon Plage (various terminus possible). Get off at ''Maison Blanche'' (about 12km, 30min), walk up to the big roundabout in front of you and follow signs "Car Ferry"/"Port Ouest" (second road on the right on roundabout). From there you have 3km left - I recommend walking, but if you have time, you can always try to hitch.
If on the A16 highway motorway (Calais <-> Dunkerque) take the Exit 24.
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