This Friday, Aug. 21, 2026, take the opportunity to see “Old Ironsides” underway in Boston Harbor or stop by to tour the ship afterward. USS Constitution will be open to the public from 3 to 6 p.m. following the underway. Admission is free. Adults ages 18 and older must present a valid government-issued photo ID to board. Don’t miss your chance to experience the world’s oldest commissioned warship afloat! #USSConstitution #USNavy #OldIronsides #America250 #BostonHarbor