KAENA POINT (HawaiiNewsNow) - Sky News Now caught up with marathon swimmer Penny Palfrey about a mile off Kaena Point on Tuesday.
She left around 11:00 a.m. on her 72-mile trip to the Garden Isle.
Besides the grueling swim, that could take up to 40 hours, she could face ocean predators and killer tidal flows.
But accompanied by a boat of lifeguards watching her every stroke, Palfrey says she's confident she'll finish the epic journey.
"I'm swimming next to this boat here, and my crew is keeping an eye on me the whole time, so I'll pretty much focus on keeping my position in the water, so I line up with the boat and the kayak on the other side to guide me in the right direction. So it takes a fair amount of concentration with the swells and just concentrating on what I'm doing," Palfrey said.
She tried to make the 72-mile trek back in March, but halfway there she was overcome by a swarm of Portuguese man-of-war.
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