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Photo courtesy of Royal Caribbean International
Before Royal Caribbean International could launch its new Harmony of the Seas, the world's biggest cruise ship, it had to prepare its "Grease" production show and test its Ultimate Abyss, the tallest slide at sea. Watch as both are done in a pair of videos, hosted at my Popular Cruising YouTube channel and embedded below.
RELATED VIDEO: Royal Caribbean International Engineers Harmony of the Seas' Ultimate Abyss
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