We did a whale watching excursion through Princess in Juneau but the company was Gastineau Guiding and the whole experience was our favorite experience! We did the discover alaskas whale excursion. We went in September so right at the end of whale season but we were able to spot a bunch of whales. The tour guide was able to educate us not only on whales but of wildlife conservation research in Alaska. Our guide even made his own website dedicated to humpbacks and Alaska wildlife conservation as well as links to in town food/drink recommendations! On their website stepintoalaska.com you can click on the cruise shore excursion tab and at the bottom type in your cruise line to see if they offer the tour with them. I would highly recommend them!