Sailing on the Star Princess Alaska on 8/24. Have already booked the tours. This will be my 4th time to Alaska. Any of the tours that you are interested in that have VIP next to them, I'd book as soon as possible. If you are interested in the White Pass railway in Skagway, I would book it too. When on the Ocean Princess several years ago, the train came right up to the ship.
We're sailing on Regal Princess on September 6th and have already booked our tours.
I'd suggest going through the tour brochure located at the Princess web site and make your decision quickly. Some tours could (possibly) already be sold out. The only tour we booked through Princess (this time) was the Burchard Gardens tour in Victoria BC. I would have looked elsewhere for private tours, but we don't want to worry about missing the ship.
In other words, if your time in port is short - you may want to consider the Princess tours, the ship won't leave people behind if they're on their sponsored tours.
"Going to Alaska 8/17, what tours do I need to book now thru Princess?"
Your best bet is to go through the tour descriptions in the book and to reserve whichever excursions you want to take on Princess's web site. The tickets should show up in your stateroom on the first day of the cruise and be billed to your shipboard account. If they don't for any reason, just go to the shore excursion desk and obtain duplicates.
If you change your mind regarding any tour, you can return your tour ticket to the shore excursion desk for full credit and, if you wish, book a different excursion in that port of call until the "closing time" for tours in each port. The "closing time," published in the Princess Patter, usually is around 10:00 AM on the day before the day of the port of call.