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One of Alaska's top draws is this spectacular marine wilderness where a network of fjords leads sightseers to spectacular tidewater glaciers. One of the most grand spectacles is known as calving, a process whereby a huge chunk of ice breaks off the glacier and plunges dramatically into the sea.
From June to September, groups of humpback whales come to feed in the nutrient rich waters of the Icy Straits just outside Glacier Bay, creating one of the world's greatest marine spectacles for visitors. Orca, as well as gray and minke whales, are also frequently spotted.