Hi Pescador
Good choice! Lots of fun to be had out of Renfrew, different than Nootka but at least equal to I'd say (and maybe better, with the new regs around Nootka -- Charlie, care to comment?).
This page gives general info as a starting point without giving away any secret spots:
http://www.fishingportrenfrew.ca/fishing.html
The map shows where Camper Creek, Owen Point, East Point, and Logan Creek are -- those are the summer hotspots along "the beach" (coastline from Owen Point northward) First spot is "the rockpile", can then just troll the coast north from there...follow the boats, there's salmon all along there. Fun part is, you tend to troll shallower than Sooke, 25 feet in 40-50 feet of water ... so when you get a 30 pounder on, there's no time spent swimming to the surface, it's all fight.
Carmanah is the lighthouse about a 40 minute run out of San Juan Harbour to the west, past Bonilla Point. It's a good starting point for halibut hunting, usually at anchor.
For Swiftsure, the map on that page above shows the closure...mark it on your GPS!!! The "chicken ranch" is on the southwest corner, not exactly giving away any secrets there, the summer prime time chicken halibut spot. Beyond that, you can just follow the boundaries to troll for salmon or find your own halibut spot. It is abundant with fish, but like anywhere, some places seem better than others on any given day ... that's fishing!
Fishing along the beach is pretty close to port, can be done in a little tinner if need be. But for swiftsure, make sure you have an offshore capable boat, with all the necessary safety gear (plus backups), and keep a close eye on the weather, especially SE winds....long trip back against the wind.
And don't forget your crab trap ... best crabbing around in the Harbour.
Good times! (I can hardly wait for summer....)