Canadian Rockies By Rail

My wife and I are enrolled in Canadian Rockies By Rail Sept. 12 through September 23, 2019.  We arrive around 10:00 AM, so we will probably have to kill about 4 hours.. We were thinking of going to heritage Park.  If anyone is interested, please reply.  The Vancouver leg of the trip has a lot of free time in the evening.  Any suggestions would be appreciated.