Polar plunge participants around the world kick off 2022 with an icy dip

A group of revelers wearing New Year's hats and glasses run into the water as hundreds of people took to the 44 degree ocean water, plunging and swimming, during the first swim of the year at M Street Beach in Boston, Massachusetts on January 1, 2022.

A man bathes in an ice hole during the annual New Year's swim in a lake near Vilnius, Lithuania, Saturday, Jan. 1, 2022.

A Looney Dook swimmer makes her way to the waters of the Firth of Forth in South Queensferry, on the outskirts of Edinburgh, Scotland on January 1, 2022, as she prepares to celebrate New Year with an icy dip.

People participate in the annual Polar Bear Plunge in Coney Island in the Brooklyn borough on January 1, 2022 in New York City. The event returned this year after a hiatus last year due to COVID-19.

A reveler runs into the water as hundreds of people took to the 44 degree ocean water, plunging and swimming, during the first swim of the year at M Street Beach in Boston, Massachusetts on January 1, 2022.

A reveler in a Santa outfit reacts to the cold water as hundreds of people took to the 44 degree ocean water, plunging and swimming, during the first swim of the year at M Street Beach in Boston, Massachusetts on January 1, 2022.

A person wearing Santa Clause costume walks out of the ocean during the annual Coney Island Polar Bear Club New Year's Day Plunge on January 1, 2022 at Coney Island in New York.

A Looney Dook swimmer takes to the waters of the Firth of Forth in South Queensferry, on the outskirts of Edinburgh, Scotland on January 1, 2022, as they celebrate New Year with an icy dip.

People go for a New Year's day dip along the beach at Scheveningen on January 1, 2022.