Rich in active gases or metals — a strong mineral character.
Buoyancy
Standard buoyancy
LowHigh
Soft water — natural, classic buoyancy.
SoufreSulfuresSulfates
Aguas Termales de Castilla Huma is a naturally sulphurous thermal spring in Chile, its name combining a Spanish designation with a Mapuche toponym — 'Huma' being a Mapuche word embedded in the linguistic heritage of the Chilean indigenous landscape. The thermal waters emerge from the volcanic subsoil of the Andean foothills, carrying sulphurous mineral compounds long valued in Mapuche tradition and associated with well-being of body and spirit. The site offers an authentic encounter with the geothermal energy of the Chilean Andes in a setting shaped by the enduring cultural presence of Chile's indigenous Andean heritage.
Insider tip — Aguas Termales de Castilla Huma sits in a remote quebrada in the Tarapaca highlands near Camina, at an elevation where Andean volcanic geology meets desert canyon landscapes. The sulfurous water emerges at a moderate 35-36°C, making it one of the cooler high-altitude springs in the region. The setting is exceptionally wild and peaceful; flamingos can sometimes be spotted in nearby wetland bofedales. Bring warm layers as temperatures plummet after sunset.