IMHO the best part of Alaska is Glacier Bay and above. Depending on the amount of time you have, you should consider renting a car out of Anchorage to see Denali National Park and the KenaI Peninsula. Last year we took our cruise on Princess, just to see Glacier Bay. The first time we saw it, it was gray and cloudy - last year the sun was out and it was beautiful. Check out "backman's alaska" in the photo gallery to get a taste of what we saw.