Lacanau is a commune in the Gironde department, Nouvelle-Aquitaine, southwestern France. Lacanau is a surfing area. Lacanau is a memb…Lacanau is a commune in the Gironde department, Nouvelle-Aquitaine, southwestern France. Lacanau is a surfing area. Lacanau is a member of the Community of Municipalities Médoc's Lakes which includes the municipalities of Lacanau, Carcans and Hourtin, the territory Médoc Océan.