"Which is best for glacier viewing: Glacier Bay, Tracy Arm Fiord, or Hubbard Glacier?
How does Tracy Arm Fiord (on the Princess Seattle roundtrip cruises) compare to Glacier Bay?"
I have been to Tracy Arm & Glacier Bay on a HAL cruise. We were very close to a glacier in Glacier Bay, but in Tracy Arm (which was breathtaking-looked like New Zealand with the steep fjords), the ship had to turn back before we made it to the Sawyer glaciers. There was too much ice - and this was mid-July. So if you want a guarantee to see a glacier, Tracy Arm isn't your best bet. I'd love to go there on a small boat some day, perhaps they can get thru easier(?).