00:00The heavy lift vessel floods its internal ballast tanks to submerge its main deck below the surface.
00:05The Boca Vanguard sinks its entire main deck 30 feet below the ocean surface.
00:12Tugs pull a crippled offshore oil rig directly above the submerged cargo deck before pumping water out.
00:18The massive carrier floats back to the surface, carrying a multi-thousand-ton structure on top.
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