REI at Lake Sammamish State Park

Wednesday, August 28 | Learn more about REI at Lake Sammamish State Park

Volunteer Signup 









An email announcement about upcoming events


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Additional Volunteers?
We love larger groups as well! If you want to register more than 10 people, please email volunteer@mtsgreenway.org with your group details.







Waiver Information

Display Waiver

Emergency Contact Information



Need to register more than one person? After you submit your own registration form and sign the e-waiver, please return to the event registration page. Starting with a fresh registration page allows us to collect an event waiver form for each individual. Thanks!