Hedge fund billionaire Daniel Loeb recently found himself in hot water after it was discovered that his superyacht had damaged Belize’s fragile barrier reef. Operators of the Samadhi — Buddhist for “a state of meditative consciousness and enlightenment” — had anchored the superyacht to live corals at the Lighthouse Reef Atoll, a Unesco World Heritage site.

Loeb was apologetic and promised to help fix the damaged reef. But the incident speaks volumes about the global billionaire class, whose fortunes grew by 25 percent last year. Today, the twenty-six richest people have more wealth than the world’s poorest 3.8 billion. What are the super-rich doing with all this money? For one thing, they’re buying boats.

Here are four things we can learn about the super-rich from their superyachts.