Picture of the Day: Siberia's Polar Bear Club

Reuters

A Siberian swim club warms up for an winter swim on the bank of the Yenisei River in an air temperature of roughly -13 degrees Fahrenheit.

Winter swims are a long-standing tradition throughout Russia, where ice water is thought to possess numerous health and spiritual benefits. The members of winter swimming clubs like the one pictured above are commonly referred to as "walruses."