We will be visiting our son in Seattle and would like to leave from there to visit Banff via car before continuing on to Calgary to fly home. We hope to spend about 8 days on this trip. I have seen plenty of itineraries from Vancouver, but would the recommended trip differ much if one were leaving from Seattle rather than Vancouver? We are a middle aged couple traveling without children and are more interested in the scenery than extensive hiking. Thanks very much for any suggestions.