Just took our 11-year-old to the Norweigan fjords this past summer on HAL Nieuw Statendam and I was very concerned with only one child of how bored she would get, being on a 2-week cruise on a ship not designed for kids. My daughter loved it, as long as there is the buffet/ice cream, swimming pools and some nightly shows - she was totally good - this boat had the Music Walk and Step One dance company. So now I'm looking into Alaska for next summer - I say go for it, your kids will be just fine. PS mine was also not interested in the kids club so she had a lot of quality time with mom and dad. Plus she had limited share time of the wifi on her device so she kept in touch with her friends which made her happy.