That stunning sum is what’s being asked by a ‘mystery seller’ on the posh Indian Creek Island off the coast of Miami. The listing at 9 Indian Creek Island Road was reported first by the New York Post who spoke to broker Ilya Reznik of the Reznik Group. Reznik told the Post that the sellers bought the land for $27.5 million in 2018. ‘“They were planning to build, but then plans changed and they decided to sell,” Reznik said, adding that the sellers are “private people” who are unwilling to reveal their identity.’

The listing touts the 2 acre parcel as including 200 feet of waterfront footage in “one of the wealthiest, luxurious and most secure communities in Miami Beach and the world.” Other perks on the private, guarded island include a country club and 18-hole golf course, as well as the island’s own police force.

Bezos—who has been engaged to Lauren Sanchez since 2023—currently owns three properties on the island at 11, 12, and 28 Indian Creek Island Road. He purchased the first property in June of 2023, paying $68 million. The longtime Seattle resident said he was pulling up roots to be closer to his parents as well as some of his space company’s operations. He then added the Indian Creek property next door for $79 million a few months later, followed by a third parcel for $90 million. (The Wall Street Journal reported that the seller of the second home did not realize that the buyer was Bezos and is suing the brokerage that handled the deal.)

While the Bezos-adjacent sellers wish to remain private, one thing is clear: The island is a haven for billionaires chasing sunshine and favorable tax treatment. In Bezos’s case, Fortune has reported that he may have saved upwards of $1 billion this year alone by moving from Washington state to Florida. “For someone with that much wealth, just the estate tax savings alone can be $10 billion, never mind the income tax savings, which is ongoing,” John Pantekidis, managing partner and general counsel at TwinFocus, which manages over $7 billion for ultrahigh-net-worth families, told Fortune earlier this year. “Florida is very, very favorable for someone like Jeff Bezos. They make it very cost-effective for folks like Jeff to live down there. It’s ideal, it’s nirvana.”