The bathtub ring, which now hovers 186 feet (57 meters) above the surface of the water is a vivid illustration of the reality of a changing climate.
"It's truly striking; it really makes you wonder," Osterero, who had travelled from France with her husband, told AFP.
"In the few days we've been here, it's become clear that you can see the effects of climate change with the naked eye."
The receding waters are revealing boat wrecks and occasional…