31st Annual Polar Plunge at Boulder Reservoir

31st Annual Polar Plunge at Boulder Reservoir

The Boulder "Polar Plunge" was first held on New Year’s Day in 1982 and hosts hundreds of spectators bearing witness to 600-800 brave individuals as they "take the plunge" into the freezing waters of the Boulder Reservoir on New Year’s Day.

Visit to purchase your plunge ticket and to set up your own personal fundraising page. Your friends and family can support you by making a donation to the clients and programs of the Boulder County AIDS Project.

Event Details:
Check in on event day begins at 10:00 am. Plungers may begin lining up at the waiver table next to the parking lot as early as 8:30 am. Plunging will happen on a first come, first served basis. Register online before Jan. 1 and save!

Our top fundraising individuals and teams will have the honor of plunging first.
The first Plungers will hit the water at 11:00 am.
The last Plungers will leave the water at 1:30 pm.

The event benefits the Boulder County Aids Project (BCAP).


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