We've all got that douchey mate who shouts "earn your turns" every time you leave the house to skate, snowboard, or ride. (Tip: If you don't think you have, it's probably you. Stop it.)

However, when these guys got in from a day of skating, they could look themselves in the mirror and say they've really paid their dues.

In fact, they ditched the boards pretty early on, and just set about free running on the massive Sepuldeva Dam, which sounds like an unlikely tribute act to both a Brazilian metal and a Belgian action film star.

The pair looked super casual as they leap over huge drops above water, and scrambled up near vertical faces as they explore the massive dam, designed by the US military to hold back winter flood waters in Los Angeles.

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