Mark Zuckerberg, the founder of Facebook, has reportedly spent more than $100m for a swathe of land in Hawaii.
He plans to create a private rapid escape befitting one of the world's richest men.
He purchased part of Kauai, the fourth largest of the Hawaiian islands, Forbes magazine reported.
The Facebook chief executive's 700 acres on the north shore will include a pristine white sand beach, a former sugarcane plantation, and an organic farm.
According to Hawaiian law, the beach will have to remain open to the public as the state has no private stretches of sand.
Zuckerberg, 30, whose net worth is around $33bn, is the second Silicon Valley billionaire to buy up part of Hawaii.
In 2013, Oracle chairman Larry Ellison purchased the whole of Lanai, Hawaii's sixth largest island, for up to $600 million .
Speculation that Zuckerberg could be interested in property on Kauai mounted last year after he was spotted on the island, with his wife Priscilla Chan, eating at Bubba Burgers.