Glacier Bay National Park and Preserve  

Thousands of cruise ship passengers each year see what the world must have looked like during the Ice Age. Glacier Bay is a 40-mile long inlet where huge rivers of ice spill down from soaring mountains into the sea. Watch for whales, sea lions, seals and sea otters. Legendary conservationist John Muir visited in the late 1800s and introduced the world to this wonder of geology in action.

Made a national monument in 1925. Turned into a national park and preserve with vastly expanded boundaries in the 1980 Alaska lands act.

Size: 3.3 million acres, bigger than the state of Connecticut. Located in Southeast Alaska, a half-hour flight northwest of Juneau.

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