No matter the temperature, the challenge of a plunge into icy water for a good cause is enough to get swimmers suited up this winter. Register in advance and don't look back. Those who want to avoid the chill can cheer on the participants.

❄️ NOVEMBER ❄️

TOWN OF BROOKHAVEN POLAR PLUNGE

Cedar Beach and Cedar West Beach, 244 Harbor Beach Rd., Mount Sinai; 631-254-1465, polarplungeny.org

Date Nov. 22, registration begins at 9:30 a.m., plunge at 11:30 a.m.

Cost $25 suggested donation

More info Benefits athletes of Special Olympics New York. Raise at least $150 and receive an official plunge sweatshirt,

SHELTER ISLAND TURKEY PLUNGE

Crescent Beach, Shore Road, off West Neck Road, Shelter Island, 631-749-0042, shelterislandpubliclibrary.org

Date Registration at 10 a.m., plung

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