Commercial plunge studios are now in Paris, Lyon, Annecy and Marseille — typically running 2–6 °C tubs with 1–4 minute exposure protocols, often paired with breathwork instruction. Pricing: €25–45 per session, €15–25 in group classes.
The research is most robust for post-exercise muscle recovery (Versey 2013, Bleakley 2012) and norepinephrine response (Šrámek 2000). Mood and metabolic claims popular in some French marketing — particularly weight-loss claims tied to brown-fat activation — exceed the dose-response data.











