Sourcéo Dax

Dax has been a thermal town since antiquity, when the Tarbelli people dedicated its Fontaine Chaude — a natural hot spring at the centre of the old town — to their goddess Nèhe, and the Romans later built a therapeutic bathing complex around it, complete with cooling basins. Today the Dax area counts sixteen separate thermal establishments, more than anywhere else in France. Sourcéo, at Saint-Paul-lès-Dax just across the Adour river, was rebranded from its earlier name Calicéo in 2014 as part of a push to align the leisure-pool circuit more closely with the town's genuine thermal water heritage rather than positioning it as a generic aquatic park. The mineral, sodium-rich water piped to its pools originates from the same deep aquifer that has fed Dax's baths since Roman times.