Finnish saunas in Biarritz, France
Atlanthal — Lagon & Fitness
Atlanthal in nearby Anglet sells single entries to its Lagon seawater pool and fitness area. Both access options include its sauna and hammam; the Lagon also hosts aquatic classes. The 2026 operator price sheet lists individual entry from €22 for fitness or €28 for the Lagon, and the centre is open year round.
Grand Tonic Hôtel — Spa NUXE
The NUXE spa at Grand Tonic Hôtel has a heated indoor pool, a sauna and a hammam. External visitors can reserve a one-hour wellness slot from Monday to Thursday for €29, subject to availability. A treatment of at least 45 minutes also includes spa access. Advance booking is required.
Sofitel Biarritz Le Miramar Thalassa Sea & Spa
The Sofitel Biarritz thalassotherapy spa offers a sauna and Oriental hammam beside a heated seawater pool. Its wellness area also has an ocean-facing relaxation lounge. External visitors can use the facilities with a qualifying spa treatment; the operator asks them to confirm rates and availability before booking.
Atlanthal — Lagon & Fitness
Atlanthal in nearby Anglet sells single entries to its Lagon seawater pool and fitness area. Both access options include its sauna and hammam; the Lagon also hosts aquatic classes. The 2026 operator price sheet lists individual entry from €22 for fitness or €28 for the Lagon, and the centre is open year round.
Grand Tonic Hôtel — Spa NUXE
The NUXE spa at Grand Tonic Hôtel has a heated indoor pool, a sauna and a hammam. External visitors can reserve a one-hour wellness slot from Monday to Thursday for €29, subject to availability. A treatment of at least 45 minutes also includes spa access. Advance booking is required.
Sofitel Biarritz Le Miramar Thalassa Sea & Spa
The Sofitel Biarritz thalassotherapy spa offers a sauna and Oriental hammam beside a heated seawater pool. Its wellness area also has an ocean-facing relaxation lounge. External visitors can use the facilities with a qualifying spa treatment; the operator asks them to confirm rates and availability before booking.