Passengers will get a free ride for the first 12 days of a new ferry service linking several neighborhoods in Brooklyn and Queens with Manhattan.

The service starts June 13, and starting June 25 tickets will cost $4.

The boats will stop at Pier 11 on Wall Street and East 34th Street, DUMBO, South and North Williamsburg, Greenpoint and Hunters Point. The route roughly parallels the G train’s route.

The service will be supported by an annual $3 million city subsidy.