Exactly a year ago, the Tampa Bay Times answered the question “What’s up with that crazy, steel cube yacht that ran aground at Gandy Beach?”

The solar-powered, stainless steel vessel that turned heads and fueled speculation when it was sailing around Tampa Bay last year turned out to not be a Bond villain’s floating fortress or the toy of a country music star, but the one-of-a-kind creation of a Tampa business executive.

Now the Rendezvous 2018 is for sale. You can own what St. Petersburg-based yacht broker Mark Goodwin calls a “floating mansion” for $11.5 million, he said. You can see the listing at Yachtworld.com.

“You can live on it with no property tax,” Goodwin said. “Park it in Key West half the year. Then sail it up to the Hamptons in the summer.”

PHOTOS: We took a tour of the cube yacht

The yacht can beach itself and make use of 18-foot hydraulic legs that lift it out of the water, theoretically keeping it stable even in a storm surge as high as 15 feet.

Goodwin said he’s also part owner of a company formed with the Rendezvous 2018′s owner to create even larger yachts of the same variety.

If you want to get a look at the 7,500-square-foot yacht before writing that check for $11.5 million, Goodwin said he’s sailing the ship to the Fort Lauderdale International Boat Show running Oct. 30 to Nov. 3, and he will be giving tours there.