People smear each other with mineral-rich black mud in the waters of Tus lake in Russia's Khakassia region, about 370 km (230 miles) southwest of the Siberian city of Krasnoyarsk, July 15, 2011. Russians from different regions annually arrive at the Tus lake rich with curative black and blue mud to live in a camp, bathe in the bitter-salty water and smear themselves with mud, which is a healing remedy, in their opinion. REUTERS/Ilya Naymushin
