Explore France 10 Dreamy French Spa Towns You Can Visit Dax: Healing Mud Baths Dax thermal baths A 1-hour drive from Bayonne. Dax is famous for thermal mud treatments which help ease joint pain and arthritis. Its charming streets are full of historic architecture and lively markets, while the riverside is a tranquil spot to unwind. Pages: 1 2 3 4 5 6 7 8 9 10