If you ever have occasion to reflect on the largest and most technically impressive ships ever built, those massive floating palaces known as cruise ships probably come to mind: Basically small cities encased in a gigantic boat.

But sometimes those behemoth structures need to be transported by something else, at which point the cruise ship's captain cranks a gigantic capstan and summons...the Boka Vanguard:

Few man-made movable structures are larger than a modern cruise ship, but even those giants of the sea sometimes need someone to lend them a hand to get to port.

So what do you do when one of these giants of the sea is unable to move on its own power?

You call a ship-carrying ship, or, to be more precise, a "semi-submersible heavy transport vessel," such as the Boka Vanguard.

"Wait, what?" you're probably saying after reading that. Yep, that's right: the Boka Vanguard is "semi-submersible," meaning it literally sinks itself in order to load up its massive cargo.

Watch footage of the Boka in action below:

The question on everyone's mind, of course, is: When it loads up an empty cruise ship, does the Boka's crew have access to the water park and the seafood buffet??

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