Te Waikoropupu Springs, Takaka karst, South Island, New Zealand, Pacific

Infrared image, historical hammer mill, museum, karst source of the Blau, Blautopf in Blaubeuren, Swabian Alb, Baden-Wuerttemberg, Germany, Europe

Mid-air-mid-water view of the Burles spring, karstic exsurgence of Vauclusian type, on the commune of sainte-Enimie, Lozere, Occitania, France.