Search for flights to BLI which is the closest US airport to YVR and rent a car, drive north.
Re Whistler/Blackcombe: I have skied Blackcombe in July and Aug of 1989 completing my goal of skiing in the Northern Hemisphere every month of the year. But the earth has warmed up quite a bit since then.
As for the food and wine scene check out the Canada forum where it has been discussed by many locals.