The rumors are true: Google is building that barge docked at Treasure Island on the San Francisco Bay. Last week, the San Francisco Chronicle uncovered documents submitted to the city by By and Large, a company connected to Google, that revealed plans for a “studio and tech exhibit space.”

The 250-foot-long and 50-foot-tall structure is being built from welded recycled shipping containers, with the design led by two coastal firms, Gensler in San Francisco and LOT-EK in New York. The project will include over a dozen sails resembling fish fins, to help provide shade and shelter, and come foul weather, the ability to be lowered.

The barge will make the rounds throughout San Francisco, stopping at several docks (each for a month), including Fort Mason, Piers 30-32, and Angel Island, among others. It will eventually make its way down to San Diego and other port cities along the west coast. The exhibit is expected to receive up to 1,000 visitors a day. Three additional barges in the works. Read more about Google’s plans here.