HONOLULU (HawaiiNewsNow) - Penny Palfrey is recovering Wednesday night, though smiling through her pain.
With all the scars on her face and body, it looks like she suffered some severe lashings.
On her arms, back, earlobe and even her face.
You can see where the Portuguese man-of-war's tentacles wrapped around Palfrey's swollen body.
"I knew that I'd given it my all there was nothing I could do about it. Kind of upsetting now because it sort of a let down, and disappointed," Palfrey said.
The former Olympic hopeful launched from Kaena Point Tuesday morning.
The first three stings happened every hour-and-a-half. But the pain was bearable enough for her to keep going.
Then, Tuesday night at 7:30, Palfrey hit what she calls "man-of-war soup."
"I was no longer able to get the tentacles off my arms and it was like swimming with a baggy T-shirt, the tentacles were just hanging off both my arms I pulled through the water and I couldn't keep going with it like that," Palfrey said.
There were so many, she couldn't count how many times she got stung.
That's when she was forced to call off the 72-mile trek.
She suffered convulsions, as Palfrey's crew took her by boat to Kauai. But the shaking subsided, and she did not need hospital care.
This is deja vu for Palfrey.
Last April, she swam the channel, made it 36 miles, before man-of-war attacked her.
Yet Palfrey says she's thinking of trying again, within the next 12 months under one condition:
"If I can figure out a way to get across and to do something so that I'm being stung by multitudes of man-of-war then I'd still like to complete the crossing," Palfrey said.
Why so determined?
Palfrey says she knows she can swim the distance.
The marathon swimmer has already crossed the English channel, swam from the Big Island to Maui, from Maui to Lanai, and the list goes on.
So the Oahu-Kauai trek, is Palfreys personal ultimate challenge.