I'll chime in here. La Push is at the mouth of the Quillayute River. Not much of what you could call a breakwater out into the surf but possibly enough on the La Push side to cast for black rock fish. Just about any jetty in that part of the world will get you into rock fish territory
But don't pass by fishing the main-stem Quilleyute. If you go into the Olympic Nat. park campsite just a mile or so upstream on the Mora Beach side of the river, you can hike down to the river and if you're an hour ahead of an in-coming tide, there are pretty much ALWAYS fish coming through. This time of the year, you could expect summer steelhead and/or springers
The downside this year: very skinny water, so the fish are spooky when the sun's out and probably move better at night or on overcast days
I was there with my daughter two weeks ago: the lowest I've ever seen that river for June, but those fish have to move some time, and there's always the chance of having a pleasant surprise
This was taken behind that camp site in June:
The water's so low this year a boat is not an advantage: you can easily wade the river if you pick your spot, and cover all the holes
Brass Blue Fox spinner, anything smallish in these conditions
Good luck!