Lake Sammamish State Park

Make a splash New Year’s Day at Polar Plunge at Lake Sammamish State Park!
Special “Early Bird” pricing only in effect until December 5! Prices will go up after December 5th. 
Polar Plunge returns on New Year’s Day 2026. 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 50 registered participants will receive a Polar Plunge commemorative pin from local company Pins by Design..
Spectators are welcome to come out to cheer on the athletes as they take a dunk in the chilly waters of Lake Sammamish.
Schedule for the Plunge:
Registration and Plunge HQ opens 10:30
<ul><li>First Day Hikes </li><li>Yoga </li><li>Costume Contest </li><li>Plunge at 12:00</li></ul>
Please dress for the weather and bring water shoes and/or socks. 
Visitors will not need a Discover Pass to park at Lake Sammamish State Park.
All proceeds from FLSSP events go to support programs, restoration, and activities at Lake Sammamish State Park.

Local Event: Polar Plunge 2026

King County

Sammamish-Issaquah

Washington

Polar Plunge 2026

Make a splash New Year’s Day at Polar Plunge at Lake Sammamish State Park!
Special “Early Bird” pricing only in effect until...

FLSSP

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ONE DAY ONLY!
Tuesday, December 16, 1-4PM 
232 Front Street North, Issaquah WA
Take care of all your holiday shopping!
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Polar Plunge 2026

JAN

1

10:30 AM

Lake Sammamish State Park, 2010 NW Sammamish Rd, Issaquah, WA

9 to 5 Artisan Pop-Up at the Holiday Shop