First off "Don't over pack" Depending on when you go, all you'll need extra is a JACKET- and raincoat-I lived in Alaska for over 54 years and 12 months out of the year I wore a light jacket in summer and warmer in winter. I'm guessing your going this summer, so a light warm jacket is all you'll need. A sweater or polar fleece for when it is warmer- ditch the coat. The cruise lines, once they get you, they don't like to let you go, they like to take all your money. When you stop in the small coastal towns, ask the locals where to go & what to see. If you get to Anchorage, it is about like any other big city, lots of traffic, fast food joints, so rent a car & get out of town. Have fun and let us all know how your trip went.