I am looking to visit the Canadian Rockies in September 2014. My husband has difficulty walking so it must be limited. I thought we would fly into Calgary, drive to Canmore, Banff, Lake Louise and Jasper. Can someone suggest how many days to spend in each location? Also, are most of the attractions visible from the car or within a short walking distance? I was looking into the Athabaska Glacier, Columbia Icefields, Banff gondola and Ice Explorer.