Lamplugh Glacier in Glacier Bay National Park and Preserve, Alaska

© Michael Melford/Getty Images

Lamplugh Glacier in Glacier Bay National Park and Preserve, Alaska

More than two centuries ago, European explorers arrived at Glacier Bay to find it covered by one massive glacier. By 1879, when John Muir arrived at Glacier Bay, he noticed that the massive glacier had retreated, and the bay was now clogged with multiple smaller glaciers. Of course, Lamplugh, pictured here, at 12.8 kilometres long, doesn’t sound terribly small. It’s one of the 16 tidewater glaciers that add some frozen Alaska drama to Glacier Bay National Park and Preserve.