Welcome To Ephemerisle

We regret to tell our community that we are canceling Ephemerisle 2010 due to insurance costs. For more details, please see the blog post announcement.

For information on a community-organized event that is taking place the same weekend, but has no affiliation with Ephemerisle or The Seasteading Institute, click here.


July 22-25, 2010 – Sacramento River Delta, California

  • What if your address could be “The Great Barrier Reef, Pacific Ocean, Earth?”
  • Did you know that our oceans are actually our next frontier?
  • Did you know that on the open ocean — you can start a new country?

Ephemerisle is creating the cradle of civilization for mankind’s next frontier — the ocean — founded on our values of freedom, creativity, and community. We are the first community-driven seasteading event dedicated to the development of sustainable, alternative social structures on the open water.
Learn more . . .

What is Seasteading?

Art & Projects at Ephemerisle

Attending the Event

Ticket Info


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