This year the Freeze festival moves to Clapham Common, which has morphed into a snowy mountain resort to host new ski and snowboard competition Hail the Rail.
For spectators on the ground, there will be alpine food stalls with belly-warming delights from fondue to mulled wine and a shopping village where you can browse skiwear and chalet holidays.
The festival also encompasses themed films, talks by cold-weather athletes and explorers, a funfair and après-ski style bars with DJs, plus music from live bands.
The line-up includes Madeon, DJ Fresh, AlunaGeorge, Idris Elba, Toddla T, Clean Bandit, MJ Cole, Maribou State, Eton Messy, Route 94, The Cuban Brothers and more.