I started fishing the Port Alberni area 17 years ago and caught my first big fish there, a 28 lb king. Port Alberni is a terminal fishery and while there may be a lot of fish concentrated there depending on weather, you have to put in the time waiting for the bite to come on. It can get fairly crowded there, particularly on the weekends. China Creek is provincial campground located close to P.A.and is a nice clean facility. August is prime time so you will need to make a reservation soon. Expect to have raft up at the dock to 3 boats deep at times.
I prefer to fish out of Bamfield now. It is a small village on the southeast side of Barkley Sound. I normally stay at the Bamfield Trails Motel which is very reasonable. There are numerous fishing spots for salmon so you don't see any crowds. There is good halibut fishing about 7 miles offshore and good rock fish areas throughout the sound. The salmon average about about 22 lbs but there are many over 30 lbs too.
If you plan on going there, contact me and I'll fill you in on the specific spots to fish.
Deepwater