This roundtrip voyage on Crystal Serenity leaves behind Canada’s dynamic city of Vancouver, travels through the pine-forest-flanked Seymour Narrows to the Pacific Ocean where whales breach, before arriving at Sitka, Alaska, a low-key city dotted across aseries of islands. Next stop is the Klondike boomtown of Skagway. Then loop around and head south, via the great glacial valleys around Endicott Arm, Tracy Arm, and Ketchikan, via the islands and white peaks of the Inside Passage, and back down to Vancouver.