Diana Nyad is an American author, journalist, motivational speaker, and long-distance swimmer. She gained national attention in 1975 for her record-breaking swim around Manhattan, covering 28 miles (45 km). In 2013, at the age of 64, Nyad completed a 110-mile (180 km) swim from Havana, Cuba, to Key West, Florida, without the aid of a shark cage or fins.