We did an Alaska cruise May 11-18 of this year. Saw the northern lights. This is no guarantee you will see them. Way too many variables. Went on Princess out of Seattle and it was a fantastic trip. We did a private whale watch tour in Juneau which was amazing. Dog musher camp and sled ride in Skagway. It was good but i felt a little rushed there. Weather was good trip was great. We love to cruise and the scenery was amazing. We had about 1/2 a day in Glacier Bay which was stunning. I would go back to Alaska for an inland trip, but will stick to warm weather cruises or maybe a European cruise or two. All in all it was a great trip and Princess cruise line delivered.