Not much to see in Vancouver. I like going to Stanley Park, Granville Island. Capilano Suspension Bridge a bit too expensive to get in. I went to Fisherman's wharf last year. My warning is do not buy the sea urchin selling there although it's really cheap. Totally different from what we eat at Japanese restaurant. I bought some ralph lauren at the Bay, even cheaper than those selling in US outlet.
Could you spare another week? I wouldn't travel to Vancouver for just a few days given the long travelling time. make it at least 10 days to make the trip more enjoyable.
You will be very tired, to spend two days in round trip, and 時差,13hours direct fight. Vancouver, Victoria, Whistler and Banff, how could you spend the time for few days. How about Seattle? It\'s different areas totally. BC is a huge Provence.