Ephemerisle

Ephemerisle is an annual week-long gathering every July on the water in the Sacramento Delta of California, United States.

Patri Friedman, co-founder of the Seasteading Institute, was inspired by Burning Man to create Ephemerisle.

[5] With its ethos of libertarianism, Ephemerisle has been described as "a celebration of laissez-faire life" which would "give people the direct experience of political autonomy".

[2] During the event, boats and other watercraft are connected together with planks, barrels, docks, cleats, and ropes, to form artificial islands on the water.

[5] A portion of the event involves the initial construction of Ephemerisle as boats join the structure and floating platforms are built.