Free Things to Do in Boston

Boston's best free activities include walking the Freedom Trail, Boston Common and Public Garden, the Esplanade along the Charles River, free concerts at the Hatch Shell, and free admission at the USS Constitution Museum.

4 places · 4 free · Updated Oct 2026

Boston Common Frog Pond

The oldest public park in America offers year-round family fun. In summer, the Frog Pond spray pool is free for kids 12 and under (opens late June). In winter, outdoor ice skating takes over. The Tadpole Playground near Frog Pond has whimsical frog-themed climbing structures. A historic carousel operates seasonally.

38 Beacon St, Boston, MA 02108Daily 6am-11pm, Frog Pond spray pool 11am-6pm (summer)
Free
USS Constitution Museum

An interactive museum telling the story of Old Ironsides, the world's oldest commissioned warship still afloat. Kids can try on sailor uniforms, practice loading a cannon, and scrub the deck. Admission is pay-what-you-wish with suggested donations. The ship itself is free to board (operated by the US Navy).

Building 22, Charlestown Navy Yard, Charlestown, MA 02129Daily 9:30am-5pm
Free
Boston Public Library

The Central Library in Copley Square has a dedicated Children's Library on the second floor with free storytime sessions, craft programs, and STEM activities. Features ToddleTown for ages 3-5, StoryScape dress-up area, a sensory wall for kids with sensory processing needs, and therapy dog programs.

700 Boylston St, Boston, MA 02116Mon-Thu 9am-9pm, Fri-Sat 9am-5pm, Sun 1pm-5pm
Free
Castle Island State Park

A 22-acre state park with a granite fort dating to 1834, beaches, walking trails, a playground, and calm-water Pleasure Bay perfect for toddlers. Everything is free — parking, entry, beach, and fort tours. Free guided tours of Fort Independence run Sat-Sun noon to 3:30pm. Sullivan's Snack Shack is a beloved local tradition for hot dogs and lobster rolls (cash only). Edgar Allan Poe connection: the fort inspired 'The Cask of Amontillado.'

2010 William J. Day Blvd, South Boston, MA 02127Daily dawn to dusk; fort tours Sat-Sun noon-3:30pm
Free