2 years ago me & hubs took a 1 week Alaskan cruise on Celebrity Cruises Infinity ship. It was beyond gorgeous. The scenery (I'll never forget those mountains & waterfalls), the glacier! (you could hear the ice cracking), the towns we stopped in, the cruise itself. Best trip we've ever taken. So relaxing and wonderful, I wish we had the money to go back. We didn't do any of the extra ($$$) tours they offer because we hope to go back some day. But I wanted to see the dog sledding camps & would have loved to do a hiking trip. I'd definitely recommend seeing Alaska. It really is just incredible.
If you want what you do not have, you must do what you have not done.