Special Olympics Delaware said that 3,500 people participated in the 2013 Polar Bear Plunge benefiting their organization today.
The event raised $652,000, spokesman Jon Buzby said. He said that in 22 years, more than $6.8 million has been raised.
Air temperature at the time of the plunge was 30 degrees, while water temperature was 38 degrees.
Buzby said 51 dogs participated in the Pooch Plunge held Saturday.