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Start New Year’s Day with a splash at the Lake Sammamish State Park Polar Plunge!

Festivities will begin at 10:30 a.m. with registration, music, and merriment on the shores of Sunset Beach. The crowd will “plunge” at noon. The first 300 registered participants will receive a Polar Plunge souvenir fleece hat, souvenir pin, commemorative sticker and coupons for a cup of Ivar's clam chowder and other New Year’s Day offers at local restaurants and establishments.

Registration opens December 1, 2022.