Le Pouliguen is within easy reach of the Channel ports (two and a half hours from St Malo (130 miles), less than four hours from Caen(210 miles)).
The twinning association may run a coach if this is financially viable as the time approaches.
The roads are good all the way.
Saint-Nazaire Montoir Airport also referred to as Aéroport de Gron is 20 miles away. However Nantes Atlantique Airport may be of more use. It is 50miles away and can be reached through Easy Jet and other airlines.