Relaxing — deep, immediate muscle release.
Rich in active gases or metals — a strong mineral character.
Soft water — natural, classic buoyancy.
On the Andean páramo near Tulcán, in Carchi province, the Aguas Hediondas springs form sulfurous volcanic lakes at 50°C with an acidic pH of 3.8. Overlooked by the Chiles and Cumbal volcanoes, this high-altitude site is best reached on Ecuadorian hiking trails.