Every sport has its arena – but sometimes, it's fun to leave the playing field. Occasionally, the willingness to experiment can produce some amazing images – like Cutun Martin, above, putting floating chunks of ice to very good use with manoeuvres like this wall ride. Below are some of the wildest, wackiest places we've seen sport take place – enjoy!
Bruna Kajiya and Reno Romeu on the Agua Branca Salt Terminal in Areia Branca. Hope they don't take a salty spill – that might scratch!
Christian Schiester trains for his next hot-weather expedition by biking in a sauna at Bad Radkersburg, Austria. Not sure what the other sauna-goers think of the view.
Duncan Zuur grabs a winch handle and goes wakeboarding in the famous canals of Venice during 'acqua alta'.
Theo Duarte takes his mountain bike through the colourful cityscape of Rio de Janeiro, and yes, it's a race.
Ahti Reinup gets ready for a run in the Red Bull Snow Kayak in Tallinn, Estonia.
Yes, this is actually possible, and yes, the technique is similar to skiing. Call it summer training!
Ski touring is not only possible on snow and grass – you can do it on sand too! Henrik May from ski.namibia.com brought this sport to the Namibian desert.
Will Gadd finds a funny spot to climb – on an iceberg in Labrador, Makkovik, Canada.
Wolfgang Leeb goes stand up paddling at the Altaussee Salt Mine in Austria. Where there's water (and enough room to stand) you can SUP!
Lothar Hofer telemarking in Europe's biggest icecave in Schwarzmooskogel, Austria.
Ben Horan carves through a field of cranberries during a Red Bull Winch Session in this Top 50 shot from Red Bull Illume 2013. Check out more on redbullillume.com.
Slicing up the ice
Did you know the fastest way to sail isn't on the water – or at least not the liquid form of it? These 'boats' have been known to reach up to 130kph.
Ripping up rocks
Austrian Freeskier Christoph Ebenbichler skis down a slope full of rocks. We just feel sorry for his skis.