Approaching a narrow passage between two bergs, he urges us on: "Okay, we're going to shoot the gap!"

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The Valdez tried to avoid such bergs as it made its way between the glacier and craggy Bligh Reef.

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Once we are in our kayaks, our guide, Timothy Duffy, leads us into a 10-mile-deep ice field dotted with blue-white bergs that vary in size from refrigerator to SUV to two-story house.

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