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Athletes start their day with an early morning ferry ride to the start and a plunge into the Villains Cave fjord.
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Massive rock walls line the swim course and early on the teams are still very much bunched up. But that quickly changes.
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The experienced team of Jan and Matus Kriska on the way to 13th place.
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The Rockman is watching as more teams are getting out of the cold water.
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On a tough climb like this patience is required as the day is long, and it is not worth risking an accident to move up a spot or two.
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There are some safety features in place, but it is best to be comfortable with heights and challenging terrain.
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Trail running shoes with good traction are helpful here, and the athlete in the lead here apparently already had a tumble.
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Watch out here or you might end up missing a shoe.
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Most of the descending is not easy here.
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Sometimes the best method to move forward is scrambling.
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It does look a bit scary from above.
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Making sure that the body stays hydrated, and these mountain springs are a welcome sight.
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On the way to the next swim.
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The longest swims at Rockman SwimRun are 1,600 and 1,700 meters, but some of them are as short as 90 and 120 meters.
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Back on the trails.
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Happy times on a rare paved section.
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How about this delightful aid station food offering.
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Kristin Larsson and Sam Clark on the way to win the mixed division and second place overall.
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Daniel Hansson and Lelle Moberg grab the overall win at the 2016 Rockman SwimRun.