Hubbard is a huge glacier. Glacier Bay is a national park where you will see more than one glacier. Some HAL ships sail into College Fjord which is beautiful. A lot depends on the weather. If the weather is nice, Kenai Fjords is amazing. You could probably skip Prince William Sound. You could visit the Wildlife Conservation Center in Portage, Exit Glacier, Seavy’s sled dog tours, drive up to Girdwood (Alyeska Resort tram). There’s not a lot to do in Whittier but you’ll see plenty of glaciers from the ship. There is also Portage Glacier tour in that general area.