this is a magical place. it s not just anywhere. it s cuba to florida. truth is others have attempted this swim before, even succeeded, but no one has done it the way diana now hopes to. just imagine this, 60 hours in that ocean with no rest, no shark cage, no flippers. diana wants to set the record for the longest unaided ocean swim in history. and she wants to set that record at age 60. the plan is audacious and maybe impossible. the swim itself that she s setting out to do is a super difficult swim. well, this is florida. david marchand makes his living navigating caribbean water. key west is right here. it s 103 miles and havana is right there. if it was in a swimming pool 103 miles it s a long way, but across the straits of florida, it s super difficult.
that ocean with no rest, no shark cage, no flippers. diana wants to set the record for the longest unaided ocean swim in history. and she wants to set that record at age 60. the plan is audacious and maybe impossible. the swim itself that she s setting out to do is a super difficult swim. well, this is florida. david marchand makes his living navigating caribbean water. key west is right here. it s 103 miles and havana is right there. if it was in a swimming pool 103 miles it s a long way, but across the straits of florida, it s super difficult. to make it, she ll have to build her body into a machine, so she s swimming every day for six, eight, ten hours at a time, hoping to conquer the one dream
caribbean reef sharks. this animal has evolved to dominate the ocean. they have a sixth sense. they can feel the electricity in the water. they know that we re there. that s why in 1978 diana swam in a shark cage. today she just uses this. sharks are tremendously sensitive to this. this is actually in the kayak. it s called a shark shield. and off the coast of the bahamas, tipple shows us how it works. it s a shark feeding frenzy at this block of chum, until tipple approaches and turns on the shark shield that hangs right above it. now the device emits a strong but harmless signal that overwhelms the sharks senses and forces them to the ocean floor. green light means it s
dominate the ocean. they have a sixth sense. they can feel the electricity in the water. they know that we re there. and that s why in 1978, diana swam in a shark cage. today, she just uses this. sharks are tremendously sensitive to. this is actually in the kayak it s called a shark shield. and off the coast of the bahamas, tippel shows us how it works. it s a shark-feeding frenzy at this block of chum, until tippel approaches and turns on the shark shield that hang right above it. now the device emits a strong but harmless signal that overwhelms a shark s senses and forces them to the ocean floor. okay, green light means it s working. to keep diana safe, shark shields are mounted below these
the amazing swim record she set. the longest distance swim from cuba to florida and she did it without a shark cage and she got stung all over her face by jellyfish and during the trek she had to deal with current shipping lanes, reefs, swarms of jellyfish and her own body. here s what sanjay gupta told us. someone described it to me, sara, he s literally racing against her own body. because as much as she would try to keep up with nutrition and hydration when you re swimming for that length of time it s impossible to do so, so you essentially start digesting your own body if you will just in order to get to to in this case florida, key west. that brings me to tonight s number, five, that was diana s fifth attempt at the record, for the past three years she s tried and failed to accomplish this feat over and over again but she did not give up. in the past she was forced to stop, and i m not stopping a few miles in here, i m talking 84-plus miles in, thunderstorms,