Vancouver Island and the "Sunshine Coast"

I'm sure others are going to be far more knowledgeable of specific areas you should consider, but I can't help but recommend Barkley Sound. When we were boating instead of RVing, we cruised up the west side of Vancouver Island to Ucluelet and Bamfield. It was a very enjoyable trip. I noticed the area was ideal for kayaking/canoeing, especially Nitinat Lake. It is a salt water lake that is in a Provincial Park. We were able to enter the narrow entrance at high tide and found out later from the only cabin owner (he was grandfathered in) that large boats normally can't come into the lake. We had a great visit. You can launch your trailerable boat from the ramp at the east end of the lake.