Highest altitude swim
Who
Herman van der Westhuizen, Jean Craven, Milton Brest, Evan Feldman, Chris Marthinusen
What
5,915 metre(s)
Where
Chile (Tres Cruces Norte)
When

The highest altitude swim is 5,915 m (19,406.13 ft) and was achieved by Jean Craven, Herman van der Westhuizen, Chris Marthinusen, Evan Feldman and Milton Brest (all South Africa), at Tres Cruces Norte, Chile, on 5 December 2015.

The record holders belong to Madswimmer, a South African non-profit organisation.The team used pickaxes to cut open a 30 cm layer of ice to prepare a swimming lane, Jean, Herman and Chris completed the 5-min swim in speedos, and Evan and Milton wore wet suits. The average water temperature was 1.2 °C (34.16 °F).