Hubbard Glacier

Hubbard Glacier is a scenic-cruising stop at the head of Disenchantment Bay, roughly a day's steam north of Juneau. At six miles wide and 400 feet tall at the face, it is the largest tidewater glacier in North America and one of the few currently advancing rather than retreating. Ships typically sit off the face for an hour or two while passengers watch for house-sized calvings — the cracking sound of "white thunder" carries several miles. Unlike Glacier Bay, Hubbard has no park-service ranger program, so the experience leans on the ship's cruise director for commentary; bring binoculars and a warm jacket either way.