Take local train , buses from port to station.
What if you don’t have a car?
If you have a spare £10000 you could purchase a run down hovel in France and still have change............. JARRY Manche 7,420 Euros (approx. £6,526)
Or 1 kg of baccies , 90 litres of wine , 10 litres spirits , 110 litres of lager so 220 cans of 50cl , thanks to EU. Till Brexit then the return of the duty free so it will be like 200 ciggies but at Tenerife price. 2 Euro a pack. Hopefully
Why would you go to 5 miles away supermarket when you can go corner shop ?