Allen Marine did a fabulous job on this Tracy Arm/Sawyer Glacier excursion. We saw killer whales, eagles, seals, beautiful waterfalls, etc. Sawyer Glacier was beautiful. They have a naturalist onboard and even scoop up a piece of glacier for you to feel/see up close. My only complaint is the cost is pretty hefty for a family of four.
The scenery is breathtaking on the train up to Fraser. Make sure you sit on the left on the way up. We took a small van with eight people back to the ship with Frontier Excursions and Adventures. They did a fabulous job and it was great having a small group and make stops along the way back.