- 06.12.13 03:27 PM EDT
Chloe McCardel set off on June 10, which means that she's currently somewhere in the ocean, swimming slowly on her way to Florida. The 28-year-old Australian endurance athlete is hoping to become the first to make the swim without a protective shark cage -- which not only protects the swimmer from sharks (as the name suggests) but also cuts a swath through the water and makes the swimming less difficult. The only other person to make the swim did it with a cage.
McCardel intends to spend about 60 hours swimming the distance, which is slightly more than 100 miles. She'll be accompanied by a couple kayaks and a support boat.