If museums are on your list of things to see in Gujan-Mestras, then you might want to head to Maison de l'Huître. Why not take a stroll along the beaches and watch the sunset while you're here? If you want to experience more of the culture Gujan-Mestras has to offer, head to Aqualand Bassin d'Arcachon, Port d'Arcachon, and Casino d'Arcachon.