September 17, 2026
7:30 PM
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Run Time: 75 Minutes
When the time is right, the most celebrated reef on Earth turns into a snow globe as millions of coral polyps reproduce to send the next generation afloat. This incredible display disguises a harsh truth: the Great Barrier Reef is under attack. More than half of the coral here has died, with a warmer ocean bleaching vast sections. But there is still plenty to see and plenty to save. We go on assignment in a series of dives with marine biologist and National Geographic Explorer Erika Woolsey to meet the most colorful residents of this underwater jungle.
