Teams route their path through Tongass National Forest before descending a 70-foot waterfall to make it to the final destination at Stephens Passage.
The teams embark on a 30-mile hike over the Tordrillo Mountains in order to reach the end point at Frustration Lake.
Teams pilot their crafts down several miles of raging river until they reach Hell's Gate, at which point they exit the water and cut through thick woods.
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