We're updating our camping and moorage fees to continue providing great experiences for visitors amid inflation and rising costs. You will see a rate increase for camping stays booked for May 15 and beyond. Moorage fees will increase Jan. 1. Learn more here.
5th of July Cleanup
There are currently no future events scheduled.
Show your love for Lake Sammamish State Park! Join us post-Independence Day to clean up and give back to your community.
We’re working together to clean up after the long holiday weekend. Join the Three Rivers Chapter of Trout Unlimited and members of the Lake Sammamish UWRP on July 5th at the Sunset Beach Bathhouse at Lake Sammamish State Park for a special park cleanup. Volunteers will spread out around the park to help pick up trash after the busy holiday.
Related events
01 Jan
Lake Sammamish Polar Plunge
Make a splash at the Polar Plunge at Lake Sammamish State Park !Polar Plunge returns on New Year’s Day 2025. Festivities will begin at 10:30 a.m. with registration, music, and merriment brought to you by Clown Garage on the shores of Sunset Beach. The crowd will “plunge” at noon.
The first 300 registered participants will receive a Polar Plunge SWAG bag, including a 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.