Winklevoss Twin Posts Video of Shark off Montauk

The Winklevoss twins, Tyler and Cameron, were at Gurney’s Inn over the weekend partying at Ben Watt’s 12th annual Fourth of July “Shark Attack Sounds” celebration according to The New York Daily News. Watts posted pictures from the party which apparently escaped the rain until 10:30 when guests reconvened indoors at the Surf Lodge.

Tyler Winklevoss posted a video of a shark circling the waters near a boat that he was on to Instagram. A fin ominously cuts through the water while music from the boat plays in the background. Scroll through pictures, above, to see video.

The twins, 32, are local—sort of—they were born in Southampton, though they grew up in Greenwich, CT. They are best known for their portrayal by Armie Hammer in the movie The Social Network. They famously invented ConnectU, originally called HarvardConnection as a social networking hub while they were students at Harvard. The idea spawned classmate Mark Zuckerberg’s behemoth Facebook.

After graduating from Harvard, Cameron and Tyler competed in the 2008 Beijing Olympics were they came in sixth for pairs rowing. They are now investors in Bitcoin, the burgeoning international Internet currency.