Sulfurous waters at the volcanic lake Usori. The water is poisonous, and the sulfur settles as yellow sediment. This water is completely saturated with sulfur (meaning it's impossible to solve any more sulfur in it, without raising temperature), and it shows. And smells.
taken on 3 August 2017, 14:02
location: Osorezan in Mutsu, Aomori, Japan