2013santaclara Ryan Lochte
Courtesy of: JD Lasica
NEW YORK CITY, New York, October 8. DIANA Nyad's encore to her 53-hour swim from Cuba to Florida began earlier this morning in Manhattan, as the marathon swimming legend began a 48-hour swim to raise funds for Hurricane Sandy relief.

Nyad is swimming in a 40-yard two-lane pool built by Myrtha Pools in Herald Square, the home of the flagship Macy's department store. Nyad's swim is taking place in front of Macy's, with hundreds of spectators stopping by to offer cheers of encouragement.

At various points during the swim, Nyad will have special guests swim in the two-lane pool with her. She started the swim live on "Good Morning America" shortly after 8:30 a.m. today with anchor Lara Spencer completing 10 laps of the pool. Nyad will finish her swim live on "Good Morning America" Thursday.





Several veterans of the New York Fire Department and First Responders team will swim in the pool today. Also joining her at the pool this morning -- but apparently not swimming with Nyad -- was True Blood actor Joe Manganiello to offer support.




Ryan Lochte is also set for an appearance in Herald Square. He will swim next to Nyad for 15 minutes starting at 4:10 p.m. Eastern time today according to Nyad's media relations team.

Nyad is very aware of her pacing, averaging 90 seconds for every 80 yards. She is stopping every once in a while for feeding and talk with her support team, so this is not a completely nonstop effort. She is, however, treading water during her feeding breaks.

After four hours in the pool, Nyad and her team have raised more than $44,000 to help victims of last year's Hurricane Sandy, which caused destruction in New York City, New Jersey and other nearby locations.

Click here to watch a live stream of Nyad's swim and for information on donating to Swim for Relief.