I will be on an Alaska Cruise at the begginning of September. The following ports are in my Itinerary: Ketchikan from 6:30-2:00 p.m., Juneau from 8:00 to 9:00 p.m. and Skagway from 7:00-8:30 p.m. I am trying to save some money if possible by deciding Excursions offered by the cruise lines VS possibly renting my own car and doing my own tours. I will be carrying GPS system on my I-Phone, and a Garmin as a backup, digital camera and a good set of binoculars. Any suggestions will be greatly appreciated.