I've been on a Mexican cruise once when I was little and I didn't really enjoy it (got seasick). My parents are now planning to go on an Alaskan cruise (from Vancouver) next year for 14 days and I was wondering if they're fun?
Should be great. Depending on which ship you go on, most are so big you can't get sea sick. (It was probably the Mexican food that made you sick!)
You will have plenty to see and do even aboard the ship, and cruising around the various bays you may see chunks falling off glaciers, and may even see whales.
Hoping to go on one of those cruises myself soon.