Our family of five took the 8:00 national park cruise and saw fjords, a tidewater glacier, and wildlife in comfort. As advertised, the boat enters the Gulf of Alaska to see wildlife and see another fjord with the tidewater glacier, but the sea was calm that day, and the catamaran ride was smooth and comfortable. :-) I brought scopolamine but didn't use it, and we had no problems with motion sickness.
Narration of wildlife and the geography was excellent. Our family got some great photos at Holgate Glacier.
It looked like everyone had an inside table and chair for the cruise, with windows to see outside. We went outside when the boat stopped to see something and went inside when the boat got underway. We saw our first puffins and were surprised how small they are (1-1.5 pounds).
The lunch was good -- better than we expected from some reviews. We called to purchase tickets that include a voucher for the SeaLife Center, which we enjoyed.