So you already have your own private tropical island and giant-sized personal luxury yacht … how do you take things to the next level? Why, you combine the two into a portable slice of floating paradise, of course!

Somewhere between crazy and kitsch, this monster of the sea features its own miniature volcano, flowing waterfall, mountain stream, and valley pool flanked by a series of small bamboo huts and shelter-providing palm trees, all set upon (and concealing) a cruise-ship-style deck.

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For adults looking for a little more reality on their oceanic voyage, an extendable deck can be deployed belowdecks via a fold-down hatch in the hull; this opening revealing stairs leading to shelters, seating and other detachable smaller sea-faring vessels for short off-ship excursions.

“This view shows the guest cabanas nestled around the pool and highlights the two deck owners’ suites carved out of the front of the volcano and looking out across the bow. The interior features an owners suite located inside the volcano and spread over two decks. The living room balcony affords views out over the front of the yacht from behind the waterfall. Located behind the bedroom is the owners private spa.”

But YI Designs is not quite done yet – they propose to build the ultra-rich vessels they have yet to dream of, if they have the wealth to afford them. Concepts include a remake of the streets of Monaco, a Chinese sailing ship and a kind of abstracted Taj Mahal on the water.

Insane? Perhaps, but if there is a market, who knows – these may actually be constructed some day. “‘The Streets of Monaco’ is our first design proposal. The theme is based around the Mediterranean principality with the primary focus being the famous grand prix circuit.”

“The idea was to recreate the circuit as a fully functional kart track able to accommodate three karts side by side to allow for plenty of overtaking. The Monaco story extends beyond this exterior architecture and into the interior spaces giving a seamless transition as guests move between the various areas of the yacht.”