Southern Patagonian Ice Field in the area, among which are the Upsala (765 km), Viedma (978 km) and Perito Moreno (258 km) in the Los Glaciares National Park in Argentina, and the Pío XI Glacier or Bruggen Glacier (1,265 km, the largest in area and longest in the southern hemisphere outside of Antarctica), O'Higgins (820 km), Grey (270 km) and Tyndall (331 km) in Chile. The glaciers going to the west flow into the fjords of the Patagonian channels of the Pacific Ocean; those going to the East flow into the Patagonian lakes Viedma and Argentino, and eventually, through the rivers "de la Leona"
Patagonian Expedition Race days. The popularity and awareness of the event has increased since its inception in 2004, with increasing features in many international magazines, newspapers, websites and TV broadcasts. The race secured its first title sponsor in 2009, with Switzerland-based company Wenger, the manufacturer of the Genuine Swiss Army Knife. At this point, the logo was altered to carry Wenger’s Swiss flag emblem and the name was changed to the Wenger Patagonian Expedition Race. 2012: The 10th anniversary edition of the race presented the 19 international co-ed teams with 565 km (351 miles) of challenging Patagonian nature; ranging from strength-sapping peat bogs