Slow Reader

I found a whodunit book on our shelf where the story is confined to the voyage of a cruise ship.  As well as the usual trying to solve it activity, a lot of the characters use of the ship was described in detail, like whinging about formal nights and always being photographed.  In the end they had a good time, the guy got the gal and the killer was brought to justice.  The voyage was thru Alaska and the description of Ice bergs, hail and rain did not help the cause for cruising any where other than the Mediterranean .

There must be 100 different books with this title