Boasting a length of 574 feet with eight decks, the oversized nature of the Acionna Superyacht Concept belies its eco-conscious intentions. The craft is powered by hydrogen, using a system similar to one currently being trialed in cruise ships and ferries. To ensure there’s plenty to do on your voyage across the seas, the interior offers enough room for a squash court, helicopter hangar, and indoor pool, while outside the pool completely surrounds a series of “island” communal areas reached by a bridge towards the front or tunnel in the rear, while the water cascades down either side to a lower pool at the swim platform. And be sure to check world’s TOP 10 expensive yachts
 

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