HealthHype CheckI Tried Contrast Therapy in the World's Deepest Geothermal Hot SpringBy Mercey LivingstonPublished on Sep 4, 2025 at 5:00 PMPOPSUGAR Photography | Mercey LivingstonPOPSUGAR Photography | Mercey LivingstonContrast therapy (i.e. moving your body between extreme hot and cold temperatures) usually looks like hopping between a sauna and a cold plunge, often within the confines of a wellness studio or gym - at least that's what it had always looked like for me.