Le Teich is a small town which lies close to the Bassin d’Arcachon near Bordeaux. It is the town I think of as my French home as I spent many happy months there over several years as a teenager and return there regularly with my family to visit wonderful friends. It is a small town typical of the region which has grown over the years and and now encompasses the Reserve Ornithologique which is a fantastic place to visit.
I would encourage you to visit the Bordeaux region in general and also Le Teich and La Teste with its oyster beds in particular. Take a look at the Le Teich tourism website for more information.