The 38th annual Boston Harborfest will kick off with patriotic music and a ceremonial cake cutting.
The opening ceremony for the multi-day festival will be held Tuesday at Faneuil Hall Marketplace.
The festival that began in 1982 features hundreds of activities to celebrate American independence, honor Boston's colonial roots and showcase the city's harbor.
Harborfest will also include historical reenactments, Freedom Trail tours, live entertainment and other activities. The festival runs through July 7.
Tuesday night is the Parade of Lights, when boaters show off festive lights on their vessels in Boston Harbor. The parade will be followed by fireworks.