1 of 40
To raise money for the Alzheimer's Association of Colorado, hundreds of people spent the first morning of their new year jumping into the water at the Boulder Reservoir during the 30th annual Polar Plunge. All photos by Brandon Marshall.
See also: The Polar Plunge 2012
Published on January 2, 2013
Find everything you're looking for in your city
Find the best happy hour deals in your city
Get today's exclusive deals at savings of anywhere from 50-90%
Check out the hottest list of places and things to do around your city