TheFork users who ate in Arcachon have said really good things about Le Confidentiel Arcachon, La Petite Moulerie and Restaurant de l'Hôtel Ha(a)ïtza. Maybe you should give them a try!
Some of the more popular Gluten free restaurants that offer vegetarian options on their menu in Arcachon according to TheFork users include:
Le Confidentiel Arcachon, with a 8.4 rating
Wine not, with a 9 rating
Al Mounia, with a 8.8 rating
Are you allergic to gluten? Never fear, there are plenty of substitutes such as buckwheat, rice, quinoa, hazelnuts, and chestnuts. Good news, right?