Thermes de Marlioz Aix-les-Bains

Thermes de Marlioz is a medical thermal spa rather than a drop-in wellness spot. The water here is naturally sulfur-rich, and treatment is built around inhalations, nasal irrigations and aerosols aimed at chronic respiratory conditions (asthma, bronchitis, sinusitis, allergic rhinitis) and affections of the oral and buccal mucosa (AMB). A medical team oversees the protocols, and most care is organized as a conventional 18-day cure, which can be partially reimbursed, or as shorter "free cures" of six days or more for those who can't commit to three weeks.

There's a mini-curiste track for children from 24 months, run on medical prescription, making this one of the few thermal centers set up for very young patients alongside adults. The site itself sits within the 10-hectare Domaine de Marlioz park, with grounds for walking between sessions, plus on-site accommodation and a restaurant so a full cure can be managed without leaving the property.

This is not a spa for spontaneous day visits: there's no day pass, and access runs through reservation and, for most programs, a doctor's prescription. Facilities and signage are in French. Opening hours run mornings only, Monday through Saturday, from 7:30 to 12:00, with no Sunday service — in line with a clinical, cure-based rhythm rather than a leisure spa schedule.