Lots of good cruise info here as well as interior info. Our cruise was right at the end of the season. We could barely see the lights one night. The display a few weeks ago was better. Problem is summer is when it’s is daylight most of the day. I was fortunate enough to be there late October, early November some years back. The lights we saw that night were majestical. It should be on everyone’s bucket list. Alaska is an awesome place. Maybe more awesome than the Rockies. If the lights are important to you, look into a trip to Iceland for that, again, not in the summer.