Head for Boulogne and then for Etaples/ Le Touquet.....
We go for a qucik spin round the war cemetery at Etaples then lunch in either Etaples town or Ste Cecile (nice breezy walk along beach with sand yachts) then nip into the Auchan on the St Omer Road, followed by dinner in the old town in Boulogne on the way back to the tunnel....
That's what we do when we go - and may see you there if you are going next Thursday!