There is a 'polka-dotted' lake in Canada
The Spotted Lake, also called the Kliluk Lake or the polka-dotted lake, is a patterned water body in British Columbia, Canada. Owing to high concentrations of minerals like magnesium sulphate, silver, and calcium, most of the lake evaporates in the summer, leaving behind 'spots' of minerals. The colour of each spot depends on the type and concentration of the minerals.