We are planning our first trip to the Canadian Rockies Sept 6-19 and will have one day to spend in Glacier (driving from Waterton). We plan on driving the GTTS road either both ways or looping around the east side. Looking for suggestions for short hikes. We are considering St. Mary Falls/Virginia Falls, Hidden Lake overlook, Redrock Lake, or Rockwell Falls trails but need to choose only one or two. What is the one short hike you would recommend to a first time visitor to Glacier? Thanks in advance.