Howdy JRH,
Route: Take the ferry, it will save you driving time, but not necessarily trip time. Any mileage I can save when towing is a blessing to me. Take your pick on which ferry is closest to you. Once you hit the other side, look at a 3 hour trip, including stops. I would also continue out 101 to Sapho and make my turn from there. The road from Joyce winds around a bit and 101 is a straighter shot and nicer when towing a boat. There is some heavy road construction on the 15 miles between Sapho and Clallam Bay, about 4 miles from town. Go slow as part of the road was red clay mud and VERY SLIPPERY. You don't want to wreck after making it that far.
Lodging: Stop at the Coho Resort between Clallam Bay and Sekiu. One nights camping and moorage runs about $25 a day/night. If you are tenting it go all the way to the Clallam Bay end (east) of the campground against the hill. It will keep you out of the wind. Coho has a nice dock facility and protected moorage as well as a good selection of gear if you forgot something. Bait is $3, Ice $2. Buy lots if you plan on using plug cuts. There is also a motel there, I think it's the Bay motel. Coho takes no reservations, but you won't need them. Coho is at 360-963-2333. Ask for Rhonda and tell her Andy M. the banker sent you. She should have info on the motel as well.
Crab pots. Had mine stolen last weekend
and I will never bring one out there again. Unless you sit on it, don't drop it. They got mine in an hour and a half, A**HOLES.
Methods. If you have two rods each, rig one with a 2oz banana sinker and a mooching rig, preferably 30lb line to reduce line kinks. Use ball bearing swivels as well because you will be trolling. Troll plug cuts soaked in a rocksalt brine, it toughens them up so you won't go through LOTS of bait. They have rocksalt there at the Coho, but bring an empty gallon milk jug, cut off part of the top, but not the handle. Soak you bait as soon as possible after you cut it. Tonight wouldn't be too early. Three of us went through 10 dozen in two days. Buy accordingly as you don't want to run out when the bite is hot. Save the heads! I'll get to that later. Fish this method from 5:00am until about 7:30, or when the bite slows. We had over 20 hits in the first hour of fishing, so get out there early when they are right up on top. We used light steelhead rods and had a blast!
The second rod, if you have downriggers, should just have two ball bearing swivels, back to back, and a mooching leader, again with 30lb test to reduce line kinks. No flasher. Go 40 to 50 pulls, put it on the downrigger and drop it to 25 feet max in the early morning. You will get many hookups while setting the release, so be prepared for it. Fish the downriggers after the early morning bite is over, after 7:30am.
When that method has slowed down, move to a flasher rigged with a green hoochie and a mooching hook set. Hook the herring heads on the top hook of the hoochie for a teaser taste and troll this at 45' between 2 and 4 mph by your GPS.
Finally, if you have any pukers, they can easily hit silvers off of the beach between Sekiu and Coho's moorage. Cast blue/white, pink/white buzzbombs or darts. Lots of candlefish near shore. Go about 100 to 200 yards west of the Coho boat launch and you won't be casting into the kelp.
Where: I haven't been more than a mile of shore yet, and seldom troll east of the green can at the east side if the bay. We usually drop the baits once we hit 50 feet of water, about 300 yards from where we moored the boat. Race track pattern about 3/4 to a mile out in front of the bay has worked well every time for me, but I caught a number of fish by heading west to the area 4/5 boundary. This is marked by a large concrete bridge that you can see in the next bay west from Clallam bay, about 5 miles.
If you can't catch fish using these methods, sell your boat, your gear, and take up needlepoint. Best of luck and sorry for the book, but this should answer most of your questions. Watch out for the fog, GPS is a plus if you have one as landmarks are pretty scarce out in the straight, and you usually don't want to find one in the thick fog.
Andy