St. Vincent @ Castle Clinton in 2008 (more by Kyle Dean Reinford)
Castle Clinton

Like at South Street Seaport, the River to River Fesival hosts free shows at Castle Clinton National Monument in Battery Park each year, and though more may still be announed, here is their initial 2011 lineup:

June 23: Vijay Iyer
June 30: Laurie Anderson with Bill Laswell
July 07: My Brightest Diamond with yMusic
July 14: Patti Smith

For each of these shows, this applies: "TICKETS ARE REQUIRED and will be
available online or two per person at the entrance to Castle Clinton at 5pm on the day of show. Show starts at 7pm. Castle Clinton, Battery Park, State Street and Battery Place."