CBS/AP/ September 25, 2011, 1:40 PM

Diana Nyad quits Cuba-to-Florida swim

U.S. swimmer Diana Nyad setting out on her Cuba-to-Florida swim Friday, at the Ernest Hemingway Nautical Club in Havana. The 62-year-old endurance swimmer had to end her attempt halfway through the 103-mile trek when stings from Portuguese Man o' War became life-threatening.

U.S. swimmer Diana Nyad setting out on her Cuba-to-Florida swim Friday, at the Ernest Hemingway Nautical Club in Havana. The 62-year-old endurance swimmer had to end her attempt halfway through the 103-mile trek when stings from Portuguese Man o' War became life-threatening. / ADALBERTO ROQUE/AFP/Getty Images

Last Updated 2:52 p.m. ET

MIAMI — Endurance athlete Diana Nyad said she was disappointed and frustrated that her dream of swimming from Cuba to Florida was dashed by the searing pain of Portuguese man o' war stings.

Nyad ended her swim Sunday about halfway through, telling The Associated Press the stings temporarily paralyzed her spine. Nyad said the pain was unspeakable.

Medics warned toxins from the stings were building up and another sting could be life-threatening.

The 62-year-old swimmer had completed at least 49 miles of the 103-mile passage of the treacherous Florida Straits.

Nyad tried last month, but had to quit after a serious asthma attack made it difficult to breathe.

Nyad said "it's a huge disappointment," but she said she will eventually focus on the positive and her desire to inspire others.

Nyad team member Vanessa Linsley said the swimmer was very swollen from multiple stings to her face and body.

Nyad wore loose bandages and rehydrated on her boat Sunday as her team headed for the Florida Keys.

Well-wishers flocked to social media sites, calling her an inspiration.

Nyad pushes through 2nd night of marathon swim
Nyad picks up pace on Florida swim
Nyad endures jellyfish in marathon swim

Nyad suffered a weekend jellyfish sting that painfully affected her face and eyes and was treated late Saturday aboard a support vessel. But her team tweeted early Sunday that she hit the water again and was continuing her methodical strokes toward her goal. Her website said she had completed more than 34 and a half hours in the water soon after 4:30 a.m. EDT (0830 GMT) Sunday — or more than 93,000 strokes.

Nyad's team didn't elaborate on the specific treatment she received or how long she was out of the water, but a team blog update posted before dawn said she resumed swimming at the "exact spot" where she had paused.

Nyad's attempt at the Cuba-Florida crossing was to fulfill a lifelong dream that she first tried as a 28-year-old back in 1978, when she swam inside a steel shark cage for about 42 hours before ending the attempt.

This attempt was fraught with more than just one sting. Earlier in her trip, Nyad had a run-in with a Portuguese Man o' War that she called "scary" and which left her with stings on her face, arms and side. Complaining of difficulty breathing, she received oxygen and a steroid shot from her doctors and trod water while she recovered from that earlier Man o' War sting.

On Saturday, handlers spotted barracudas in the area and she got a visit from a curious Oceanic white tipped shark that was shooed off by a support diver. Three so-called "shark divers" served as her security detail in the water early Sunday.

Without a cage to protect her, Nyad relied on equipment surrounding her with an electrical field that is harmless but deters most sharks. Her divers gently discouraged any who made it through. But not all encounters with marine life were unpleasant. Earlier in her journey, 10 pilot whales emerged in the distance ahead of the swimmer, according to one team tweet.

diananyad.com

© 2011 CBS Interactive Inc. All Rights Reserved. This material may not be published, broadcast, rewritten, or redistributed. The Associated Press contributed to this report.
20 Comments Add a Comment
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endrepubs says:
Why can't a boat go in front of her clearing the water of jelly fish?
I had no idea Diana was 62 until I read this article. The whole world is pulling for her.
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rwsmith29456 says:
I think she is in much better shape than I'll ever be. She swam 49 miles. I think I might make 40 feet.
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muzzamon says:
I admire this superb athlete. She is a specialist. Phsycial things are what she does. Posters who say a 62-yo should do something more useful are.....clerks.
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saturn05 says:
Great job! I wish she could have made it!
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marlae says:
Man-of-War is a jelly-like marine animal but it's no jellyfish. It belongs to a different group of creatures called the siphonophores.

I made contact in 2001 at Myrtle Beach, SC and spent a full day in ER, see full story and pictures (and other stories) at public awareness site at: portugesemanofwar.com
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tito2844 says:
I know this was going to happen she just wants 15 more minutes of fame! she is old to do that she has to realize that, I don't know what she is trying to prove ......not interested at all!
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Meg003 replies:
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Yet you took time to click on the headline, then comment? What do you do when you are interested? Take your whining somewhere else if you don't want to read it!
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cmp42 says:
In 1979, she stroked the longest swim in history making the 102.5 mile journey from the island of Bimini (Bahamas) to Florida.

Hey she did this once already, I believe though her dream was to complete it from Cuba, her dad was Cuban.
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rsmik says:
is that her real name? Naiad is a water nymph, Diana is a goddess..
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skithebumps replies:
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rsmik
That's her real name. She was adopted by her mother's second husband, a Greek with the last name of Nyad.
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Meg003 says:
I think she's terrifically inspirational to attempt this strenuous feat. I cannot get her courage out of my mind. After two bouts with cancer, I have not worked as hard at keeping fit recently. Diana is reminding me that it is not too late to embrace a physical challenge and live life fully!
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werntrouble says:
I agree with the others who said, you're 62, channel your energy into other more productive things instead of attempting to kill yourself. Life isn't all about physical challenges, so try some others instead.
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