For more than seven years it has spun heads from St. Barts to Bali. Now, the rule-breaking 140-foot power trimaran Adastra is up for sale, and could be yours for a cool $12 million.

This futuristic, ocean-crossing projectile was built back in 2012—at a cost of well over $20 million—for Hong Kong–based shipping magnate Antony Marden to cruise Indonesia and Southeast Asia.

But in those seven years, the custom-built, wave-piercing-hulled superyacht has crossed the Atlantic half a dozen times and taken Marden and his wife island-hopping around the globe.

“She’s been the most remarkable boat. Her seaworthiness is quite amazing. We’ve weathered 50-knot winds crossing both the Pacific and Atlantic oceans. She just takes everything in her stride,” Marden tells us.

“She’s also extremely economical. Cruising at 10 knots, we burn just 4.5 gallons an hour. That gives us a range of around 10,000 nautical miles. We recently did St. Maarten to Vigo in Spain and had enough fuel left to head back to the Caribbean.”

“She’s been the most remarkable boat. Her seaworthiness is quite amazing. We’ve weathered 50-knot winds crossing both the Pacific and Atlantic oceans. She just takes everything in her stride,” Marden tells us.

“She’s also extremely economical. Cruising at 10 knots, we burn just 4.5 gallons an hour. That gives us a range of around 10,000 nautical miles. We recently did St. Maarten to Vigo in Spain and had enough fuel left to head back to the Caribbean.”

And it’s quick. Powered by a single 1,150 hp Caterpillar C18 straight-six turbo diesel, Adastra has a top speed of 23 knots with a cruising speed—in pretty much any weather—of 17. For backup, it also has a pair of 110 hp Yanmar diesel engines.