If you'd like to get away from the piers, you might try a couple of spots where I used to have some pretty good luck:

Point Defiance - on the outgoing tide, from the time the tide is about half out until the time the tide is about half in. Just walk up the beach right out to the point. You just have to time it so you can make it out wading and get back before it gets too deep on the incoming tide.

Out at the end of the point, there is a shelf and the water drops right off. The current makes some interesting eddies and the bait schools up really thick at times. The absolute best is to get out there before light and be fishing at the beginning of morning nautical twilight. It's a little bit of a walk in the early a.m. You have to park at the boat launch and hoof it all the way out to the point. I did that countless times and never got bothered by anyone enforcing park hours.

Buzzbombs work very well. With the tide going out, its like fishing in a river. Cast up-current and let the thing sink as it drifts down. Many hard strikes come just on this drift. Twitch it, retrieve it in the normal buzzbomb way, vary it. Have caught many silvers and blackmouth this way.

You can also cast mooching gear w/herring. If there's no one else out there, longlining the mooching gear can be very effective.

I immagine bait under a float would also work.

The other spot you can try is under the Narrows Bridge. We used to park at the park parking lot and walk down the winding road. There is (was?) a path off the road when you get near the bottom of the hill that takes you to the shore. Watch out for the trains. I would fish this spot when the morning tides were incoming, so that Point Defiance was not an option. I haven't been down there in several years, so I don't know if the access has changed.

Just find yourself a place on the rip-rap and cast away.

It's not as deep as Point Defiance so you really can't just let a buzzbomb drift. I used more of a standard buzzbomb retrieve. I don't believe you could cast mooching gear like you can up at the point. Bait under a float would work, I believe.

There's all kinds of kelp and rocks and the fish come in shallow at dawn and it really is a crack of dawn deal. After sun-up on a clear day, your fishing may be done. If it's grey and cloudy, that may extend your fishing.

Again, I always had my best luck at the crack of dawn, with buzzbombs.