Biarritz is not only a fantastic spot for surfers, it is also a very pleasant and fun little city in the South West part of France (the "Basque Country"), only 25km away from the Spanish border. People are nice, food is fantastic (French, Basque, Spanish) and the region, between ocean and mountains (the Pyrenees) is truly gorgeous.
This is the place to go for big wave action in France. It used to be all about body surfing, but surfing has caught on in recent years. Beautiful big dunes and cliffs.
Great waves, Great town + Great people.