The Baïa urban passenger transport network of the Communauté d’Agglomération du Bassin d’Arcachon Sud is operated by Transdev Bassin d’Arcachon. The network comprises 10 bus routes, 2 express routes and 2 Sunday routes linking the 4 communes of the area: Arcachon, La Teste-de-Buch, Gujan-Mestras and Le Teich.

In addition, there are two types of transport-on-demand services:

• door-to-door for seniors over 75 and people with reduced mobility (TAD Seniors and TPMR),
• stop-to-stop for night-time outings (TAD Nuit).
• 22 school routes complete this transport offer.