Boulder Polar Plunge Presented by Westerra Credit Union

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Saturday, March 16, 2018
11:30 am – 3:00 pm

Location: Boulder Reservoir, Boulder, CO

2019 Horizontal Polar Plunge SOCO Logo Gradient

Registration has closed, but plungers may register at the event! To support a participant or make a donation, click on the button below!



Plunge Registration
($75 fundraising minimum)

Student/Athlete/Military Plunge Registration
($50 fundraising minimum)

Join us on Saturday, March 16th for a pre-St. Patty’s Day
Polar Plunge at the Boulder Reservoir!

For the first time ever, the Boulder Polar Plunge
falls on St. Patty’s Day weekend.

Plunge in your best St. Patty’s Day costumes
and win the coveted Irish Polar Bear trophy!

St. Pattys Polar Plunge

frat sor challenge (2)

Boulder Plunge Plaza sponsored by Team Select Home Care

Before you plunge, check out Plunge Plaza!

  • Small bites from Noosa Yoghurt, Beehold Cakes, Boulder Organic Foods, and Texas Roadhouse Longmont.
  • Meet and Greet with Petey the Polar Bear
  • Hot Cocoa, Duffeyrolls, Einstein Bros. Bagels and more!


Boulder After Splash Bash sponsored by New York Life

beerstock.0Party with us at the “After Splash Bash” hosted at The Rayback with one complimentary beer from Avery Brewing for participants 21 yrs+.

Irish music, photo booth, small bites, food trucks, prize drawings and more!

All free for participants!

Must show your event wristband!


Plunge FAQ's

Can’t join us but want to support from afar, click here.

Every dollar counts towards our $55,000 fundraising goal and we’re grateful for your kindness and generosity!

Sponsor Recognition Lockup