The Ultimate Guide to Polar Bear Plunges in the USA

This article is for general information only and is not medical advice. Cold water immersion and heat bathing carry real health risks. Talk to your doctor before you start, especially if you are pregnant or have heart, blood pressure, or circulation conditions. This article also contains affiliate links, and we may earn a commission at no extra cost to you.

Few cold water traditions are as joyful as the American polar bear plunge. Every New Year's Day and throughout winter, communities across the country gather to run, scream, and splash into freezing water, often to raise money for charity. It is a perfect, low-commitment way to try cold immersion with a crowd of supporters around you.

What a polar bear plunge is

A polar bear plunge is an organized event where a group enters cold water together, usually for a few seconds to a minute. Many are charity fundraisers, and most happen at lakes, rivers, and beaches from coast to coast. Because they are supervised, with safety crews on hand, they are one of the safest ways to experience real cold water.

How to find and prepare for one

Search for plunges in your area, especially around New Year's Day, and through charity organizations that run annual events. Cold-water-rich regions like our New England cold ocean scene and the Minnesota winter community host some of the biggest. To prepare, build a little cold tolerance ahead of time with short cold showers or a backyard tub, like the routine in our California cold plunge guide.

What to bring

Pack for the after, which is colder than the plunge itself. A waterproof changing robe, merino base layers, a quick-dry towel, and warm footwear get you comfortable fast. Neoprene booties protect your feet from icy ground and rocky bottoms, and a swim cap keeps some heat in.

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Plunge day tips

Get in and out, do not dunk your head if you are new, and head straight for dry clothes. Listen to the event's safety crew, and do not push a long swim just because others do. If you catch the bug, the wild-water guides for the Great Lakes and even Alaska show where the rabbit hole leads.

How to find a plunge and what to expect on the day

Search for plunges through local charities, parks departments, and swim clubs, especially around the new year. Expect a crowd, a countdown, and safety crews on hand, then a quick run into the water and a faster run back out. Register early for popular events. Bring everything for the after, since standing around wet in winter air is the real chill. Our New England and Minnesota guides cover two of the biggest scenes.

How to choose your first plunge kit

Keep it simple: a changing robe to change and warm up, merino base layers for your core, a towel, and neoprene booties for icy or rocky ground. A cap helps retain heat. You do not need much for a brief plunge, but the right after-kit makes it far more enjoyable.

Recommended gear for your first plunge

• A changing robe to warm up right after
• Merino base layers for your core
• Neoprene booties for icy ground
• A quick-dry towel for the dash to dry clothes

Frequently Asked Questions

What is a polar bear plunge?

It is an organized event where a group runs into cold water together, usually for a few seconds to a minute, often to raise money for charity. Safety crews are typically on hand, making it a beginner-friendly way to try cold water.

When do polar bear plunges happen?

Most happen in winter, with New Year's Day being the classic date. Many charities and clubs run annual plunges, so search locally for events near you in the cold months.

How do I train for a polar bear plunge?

Build a little cold tolerance in advance with short cold showers or a backyard cold tub. You do not need much, since the event itself is brief, but some exposure makes the shock easier to handle.

What should I wear?

Wear a swimsuit, and bring warm layers, a changing robe, a towel, and footwear for after. Neoprene booties help on icy or rocky ground. The aftermath is colder than the dip, so pack accordingly.

Are polar bear plunges safe?

They are among the safer ways to try cold water because they are supervised and brief. Still, cold water shocks the body, so follow the safety crew, keep it short, and skip it if you have a heart condition without medical clearance.

Do I have to be fit to do a polar bear plunge?

Most people can do a brief plunge, but cold water shocks the body. If you have heart or blood pressure conditions, get medical clearance first, and follow the event's safety guidance.

What should I do right after the plunge?

Head straight for dry clothes, start warming your core with layers and a robe, and move around gently. Avoid lingering wet in the cold and skip an immediate scalding shower.