Long-distance swim legend Diana Nyad, fresh off her record-breaking swim from Cuba to Florida attends day 1 of 'Swim For Relief' Benefiting Hurricane Sandy Recovery at Herald Square on October 8, 2013. (Photo by Slaven Vlasic/Getty Images)
Diana Nyad's 48-Hour Swim In Herald Square
Long-distance swim legend Diana Nyad, fresh off her record-breaking swim from Cuba to Florida swims at day 1 of 'Swim For Relief' Benefiting Hurricane Sandy Recovery at Herald Square on October 8, 2013. (Photo by Slaven Vlasic/Getty Images)
Diana Nyad's 48-Hour Swim In Herald Square
Distance Swimmer Diana Nyad swims in a 40-meter pool, constructed in Herald Square, during an attempt to swim for 48 hours straight to support victims of Hurricane Sandy on October 8, 2013. (Photo by Andrew Burton/Getty Images)
Diana Nyad's 48-Hour Swim In Herald Square
A volunteer swim partner from the Fire Department of New York (FDNY) waits for distance swimmer Diana Nyad (R) during her attempt to swim for 48 hours straight in a constructed 40-meter pool in Herald Square, to support victims of Hurricane Sandy on October 8, 2013. (Photo by Andrew Burton/Getty Images)
Diana Nyad's 48-Hour Swim In Herald Square
Long-distance swim legend Diana Nyad, fresh off her record-breaking swim from Cuba to Florida swims at day 1 of "Swim For Relief" Benefiting Hurricane Sandy Recovery at Herald Square on October 8, 2013. (Photo by Slaven Vlasic/Getty Images)
Diana Nyad's 48-Hour Swim In Herald Square
Long-distance swim legend Diana Nyad (L), fresh off her record-breaking swim from Cuba to Florida talks to actor Joe Manganiello at day 1 of 'Swim For Relief' Benefiting Hurricane Sandy Recovery at Herald Square on October 8, 2013. (Photo by Slaven Vlasic/Getty Images)
Diana Nyad's 48-Hour Swim In Herald Square
Long-distance swim legend Diana Nyad (R) and Olympic Gold Medalist Ryan Lochte attend day 1 of 'Swim For Relief' Benefiting Hurricane Sandy Recovery at Herald Square on October 8, 2013. (Photo by Slaven Vlasic/Getty Images)
Diana Nyad's 48-Hour Swim In Herald Square
Richard Simmons and Diana Nyad swim during 'Swim for Relief' Benefiting Hurricane Sandy Recovery - Day 2 at Herald Square on October 9, 2013. (Photo by Ilya S. Savenok/Getty Images)
Diana Nyad's 48-Hour Swim In Herald Square
Extreme athlete Diana Nyad (top) swims along side members of the Air Force during 'Swim for Relief' Benefiting Hurricane Sandy Recovery - Day 2 at Herald Square on October 9, 2013. (Photo by Ilya S. Savenok/Getty Images)
Diana Nyad's 48-Hour Swim In Herald Square
Long distance swimmer Diana Nyad (R) hugs a swimmer during "Swim for Relief" at Herald Square on October 9, 2013. "Swim for Relief" is raising funds to help victims of hurricane Sandy. (Photo credit: Emmanuel Dunand /AFP/Getty Images)
Diana Nyad's 48-Hour Swim In Herald Square
Long distance swimmer Diana Nyad (R) talks with a swimmer during "Swim for Relief" at Herald Square on October 9, 2013. (Photo credit: Emmanuel Dunand/AFP/Getty Images)
Diana Nyad's 48-Hour Swim In Herald Square
Long distance swimmer Diana Nyad (L) swims during "Swim for Relief" at Herald Square on October 9, 2013. (Photo credit: Emmanuel Dunand/AFP/Getty Images)
Diana Nyad's 48-Hour Swim In Herald Square
Nikki Reed and Diana Nyad swim during 'Swim for Relief' Benefiting Hurricane Sandy Recovery - Day 2 at Herald Square on October 9, 2013. (Photo by Ilya S. Savenok/Getty Images)
Diana Nyad's 48-Hour Swim In Herald Square
Diana Nyad and Nikki Reed pose during 'Swim for Relief' Benefiting Hurricane Sandy Recovery - Day 2 at Herald Square on October 9, 2013. (Photo by Ilya S. Savenok/Getty Images)
Diana Nyad's 48-Hour Swim In Herald Square
Natalie Morales and Diana Nyad swim during 'Swim for Relief' Benefiting Hurricane Sandy Recovery - Day 2 at Herald Square on October 9, 2013. (Photo by Ilya S. Savenok/Getty Images)
Diana Nyad's 48-Hour Swim In Herald Square
Gary Hall, Jr. and Diana Nyad swim during 'Swim for Relief' Benefiting Hurricane Sandy Recovery - Day 2 at Herald Square on October 9, 2013. (Photo by Ilya S. Savenok/Getty Images)
Diana Nyad's 48-Hour Swim In Herald Square
Diana Nyad and Nastia Liukin pose during 'Swim for Relief' Benefiting Hurricane Sandy Recovery - Day 2 at Herald Square on October 9, 2013. (Photo by Ilya S. Savenok/Getty Images)
Diana Nyad's 48-Hour Swim In Herald Square
Diana Nyad (L) and Sammi 'Sweetheart' Giancola pose during 'Swim for Relief' Benefiting Hurricane Sandy Recovery - Day 2 at Herald Square on October 9, 2013. (Photo by Ilya S. Savenok/Getty Images)