Rockport State Park has two trails which are good for people who don't hike a lot. One is a bit more strenuous than the other, but just a bit. And the other is wheelchair accessible.
> https://parks.wa.gov/find-parks/state-parks/rockport-state-park
And, if you *are* up for a hike that makes you work? Just a little west of the park entrance is the Sauk Mountain trail.
> https://www.wta.org/go-hiking/hikes/sauk-mountain
Yes, the trailhead is quite high up so you don't have to climb the whole mountain. But it's just off vertical from there…