Photos of Herman van der Westhuizen on Mount Muelas Muertes, courtesy of Nicolene Steynberg about the Madswimmers The Big Swim on Mt Ojos del Salado in Argentina. The advantage of doing high-altitude swimming up on a volcano is the availability of a 30ºC (86ºF) thermal bath right next to the 8ºC (46ºF) lake. Herman van […]