Polar Bear Plunge Day

Polar Bear Plunge Day kicks off the swimming season every January 1. Just thinking about it gives most people chills—the first day of the year is certainly not the warmest time to swim! Yet fans of this holiday are fearless, bravely diving into icy water and feeling an incredible sense of relief. Would you dare to join them?

History

This tradition began long ago. In America, clubs for cold-water enthusiasts have existed for over a century. Researchers found that the first organized plunge took place in 1904 in Dorchester Bay, Boston Harbor. Participants and spectators enjoyed the event so much that it became an annual tradition. However, swimming in icy water was practiced much earlier—for example, it was a favorite activity of the Scandinavians.

Scientists say that cold water can strengthen the body, normalize metabolism, improve skin condition, and help rid the body of toxins. Immersing in cold water also triggers the release of dopamine—the happiness hormone—which gives you energy, reduces stress, and helps fight insomnia. Deciding to try it, though, takes some courage!

Interesting Facts

Did you know that swimming in ice water:

• can become truly addictive? Many fans continue the practice all year long—even filling their bathtubs with ice in the summer!
• is not an ordinary activity—you definitely need to prepare for it;
• set a U.S. participation record in 2008, with 12,000 plungers joining in.

How to Take Part

Join a local club and try being a “polar bear” for a day! Watch videos to prepare, and talk to your doctor before you take the plunge. Tell your friends about the tradition and gather a team of like-minded adventurers.

When is Polar Bear Plunge Day in 2026?

Polar Bear Plunge Day is observed on January 1 each year.

Observations