Not much in Whittier, but the glacier boat tours are superb. IF you are using a toursaver, there is a coupon available. This will give you excellent extended close of views of several glacier, chance of wildlife. Both far superior viewing compared to your cruise ship.
As for your ports, you need to narrow down your interests, there are 100's of fantastic Alaska tours to consider, few that aren't worthwhile if you have the interest. Determine your budget- they can cost for some. Look over a shore excursion list and rank your top 5 perhaps, involve the girls.