Yeah, I suppose you could. Might be a handful trying to the get boat back up the muddy banks. Might be better to try the estuary areas of these systems from the boat, below the gates/dams. And it can be a bit unpredictable in the terms of having to row/paddle back to where you put in with tides, currents, and dams opening or closing. As Ralph mentioned, no power boats above the gates/dams.
I might suggest putting in on the Fraser like Derby Reach or something.
Pinks rolling through, schools of coho, jacks, sturgeon etc. And lots of course fish to keep the kids interested.