Lake Sammamish State Park
Two sandy beaches anchor this 531-acre park, with plenty of picnic tables (bring your own basket or hit the concession stands), a playground, and seasonal kayak and paddleboard rentals. There are a few shady walking trails, which offer good bird-watching and wildlife viewing. If you head east, you can connect to the Sammamish River Trail and walk or bike all the way to Marymoor Park.
