Rich in active gases or metals — a strong mineral character.
Buoyancy
Standard buoyancy
LowHigh
Soft water — natural, classic buoyancy.
SoufreSulfuresSulfates
These thermal footbaths are located in Rotorua, Bay of Plenty, New Zealand, a region famous for its intense geothermal activity. The sulfurous, slightly acidic water (pH 6.5) reaches around 42 °C (108 °F) in this open-air pool free for casual bathing.
Insider tip — These public thermal footbaths in Rotorua's town center sit atop one of the world's most geothermally active urban areas, where sulfurous steam vents through the pavement itself. The free footbaths along the lakefront promenade let visitors dip their feet in authentic geothermal waters scented with hydrogen sulfide. Rotorua's Maori Ngati Whakaue tribe has used these waters for healing and cooking for centuries, giving the experience deep cultural resonance. Best enjoyed at dawn when mist rises from the lake and geysers erupt in the distance.