Growing up on Kauai, Sebastian Zietz is no stranger to shallow reefs and hollow surf. And judging by his second GoPro Challenge entry, he looks comfortable as ever inside the barrel at Backdoor. Here, he even lays into a bonus carve on the end section -- a risky move considering the reef is lurking inches below.
GoPro Challenge Hawaii: Zietz's Tube-to-Carve Combo
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