This mostly natural park has an amazing set of semi-paved (often covered in mud) trails, including a 2.8 mile loop. The far end of the park is where it meets the Puget Sound, and its really stunning. Lots of people go to stare at the water, draw, meditate.
The trails are definitely not accessible friendly, and require comfort with talking on varying paths, rocks, and mud....lots of mud. Try the north parking lot for better acessibility..