Friends of Lake Sammamish State Park membership is open to anyone who wants to support and improve the Park. You can easily become a member online by using our secure PayPal signup. To get started simply choose a membership level and click the Buy Now button.
Membership Level
You can also mail your payment to the address below. Please download and complete our membership signup form and include that with your payment. Friends of Lake Sammamish State Park P.O. Box 605 Issaquah, WA 98027-0023