"Swim relay across the icy waters of the Bering Strait"
Polar ExplorersWeb - English - Wednesday July 31, 2013
In 2006 Dimitri Kieffer and Karl Busby crossed the Bering Strait without support by walking on stable ice, crawling on unstable ice, climbing over ridges and swimming in open water while pulling sleds with their provisions. The duo started from Wales, Alaska, and landed in Uelen, Chukotka, Russia. They completed the 200 miles / 322 kilometers in 14 days from March 17-31, 2006. 5 days were spent swimming.
Link to Full Article