I've hunted the foot access public areas from Stanwood to Samish Bay and also gave up. Too many fools ruined too many hunts. Same stuff as above. People sky busting, shooting off my decoys, and setting up right behind me. If you have a boat you might be able to find decent hunting.
I only hunt private property now. Just from knocking on doors I got permission to hunt a couple of places. My favorite farm is owned by an older guy and he's great about it. I don't leave a mess, I don't shoot early on weekends, and I take him a fish or two each year.