If you haven't already looked into it, there could be good river-rafting options in Golden, B.C., on the Kicking Horse River. Might also be some in Kananaskis, but not sure what the 'quality' is like for either area...just might be worth a look.
But terrible news for Jasper residents and businesses, as well as the affected tourists. And the giant fire is still going in the surrounding areas beyond the townsite - yikes.