The second and final swim of the Into The Maelstrom expedition took the brothers across the mighty Moskstraumen - an 8km point-to-point crossing between the islands of Vaeroy and Mosken…

The Saltstraumen crossing was a frantic sprint through a 0.25km tidal split with the world's fastest currents. The submerged seamounts funnel up to 400,000,000 cubic metres of swirling seawater through a 3km long and 250-metre wide strait every six hours…