PALM BEACH, Fla. (AP) _ Stella Taylor, the 56-year-old Fort Lauderdale woman determined to swim from the Bahamas to Florida, has failed in her fourth attempt at the feat.

Taylor left Gun Cay, a Bahamian island about 20 miles south of Bimini, early Friday. Tired, dehydrated and sunburned, she gave up just after 4:30 p.m. Saturday when she was pull onto her support boat, ''Miss Piggy.''

She had been swimming for 34 hours, stopping every half hour to eat a cracker or take a drink while treading water.

According to a reporter on the support boat, Taylor was about 15 miles east of Palm Beach when she quit.

Because of the northward pull of the Gulf Stream, a swimmer hoping to make the trip would have to swim about 80 miles. Diana Nyad made a similar crossing in August 1979 in 41 hours and 41 minutes.

Taylor also was close to pulling off the feat in 1981, when she was pulled from the ocean after swimming for 51 hours. Though she didn't complete that crossing, her effort set a world endurance record for open-water swimming.