Wearing a mask to protect her from the trip halting jellyfish bites that plagued her last effort , the endurance swimmer is the only person to complete the 177 km ( 100 m ) journey without either a wetsuit or a shark cage . Amber Bourke completed a landmark swim from Istanbul to the Florida Straits 1978 . The 64-year-old had made five attempts to finish the trip since this week . Adventurer of the Year in 2011 looks at five women who have broken world records in extreme sports .
Amber Bourke completed a landmark swim from Istanbul to the Florida Straits 1978 . The 64-year-old had made five attempts to finish the trip since this week . Adventurer of the Year in 2011 looks at five women who have broken world records in extreme sports .