Is Boston family-friendly?

Boston Children's Museum on Congress Street charges $22 per person, free for kids under 1, and the 3-story climbing sculpture holds ages 2 through 8 for a solid 2 hours. The water-play area on the ground floor will soak your kid head to toe, so bring a change of clothes in a ziplock. Two blocks north, the New England Aquarium on Central Wharf runs $34 adult and $25 child for ages 3-11. The penguin colony at the base of the Giant Ocean Tank tends to keep toddlers fixed in place for about 20 minutes before they want to move. The Museum of Science on the Charles River dam sells a separate Butterfly Garden ticket for $7 extra. That garden is the best 30 minutes you will spend with a child under 5 in this city. Warm, humid air, quiet except for small voices, and the butterflies land on outstretched fingers if you hold still.

The Freedom Trail covers 2.5 miles from Boston Common, established in 1634 as the oldest public park in the United States, to the Bunker Hill Monument in Charlestown. With kids under 6, split it across two mornings. The first segment from Boston Common to Faneuil Hall is about 1 mile and flat. The second segment crosses into the North End and climbs toward Charlestown. Bunker Hill Monument has 294 steps and no elevator, so skip it entirely with kids under 7 and save your legs for the afternoon. The Public Garden Swan Boats run April through September at about $4.50 adult and $3 child for ages 2-15. Each ride lasts 12 minutes. Short enough that a 2-year-old stays engaged but long enough to feel the breeze off the lagoon and smell the cut grass from the park crew's morning rounds.

The T is stroller-hostile. The Green Line runs old trolley cars with steep steps and narrow doors that force you to collapse the stroller while holding a child and a diaper bag. Red and Orange lines have level boarding at newer stations, but elevator outages happen weekly. Check the MBTA accessibility page before you leave the hotel each morning. For the waterfront stretch between the Aquarium and Seaport, stay above ground. The Harborwalk is flat, wide, and paved for 1.2 miles along the water, with the cold salt smell of Boston Harbor and no curb cuts to negotiate. Beacon Hill's brick sidewalks will rattle a lightweight umbrella stroller until your arms go numb. Newbury Street in Back Bay is smooth pavement but shoulder-to-shoulder on Saturday afternoons.

Flour Bakery on Farnsworth Street in Fort Point, 2 blocks from the Children's Museum, sells a sticky bun the size of a toddler's head for $5.75. The warm brown-sugar smell hits you from the sidewalk. Legal Sea Foods at the Prudential Center has high chairs, a kids' menu, and clam chowder at about $9 a cup. Most kids 4 and older will eat it if you call it creamy potato soup instead. For allergy families, Life Alive in Harvard Square posts full ingredient lists and handles nut-free requests without the blank stare you get at chain restaurants. When all else fails, Faneuil Hall's ground-floor food court is loud, chaotic, and stocked with chicken fingers, pizza, and fries. No shame in a tactical retreat to familiar food on day 3.

Summer temperatures in Boston reach 27-32°C with humidity that pushes the feels-like reading past 36°C. Current conditions sit at 31.8°C actual and 36.4°C apparent. The spray fountains along the Rose Kennedy Greenway run daily mid-June through August and work as a free water park for kids under 8. Towel, swimsuit, done. For accommodation, the Residence Inn by Marriott in Seaport has 2-bedroom suites with a kitchen starting around $280 per night in shoulder season. The Kimpton Onyx near North Station sits within walking distance of the Museum of Science and TD Garden. Cribs come without a surcharge. Avoid the Financial District on weekends. The neighborhood empties and restaurant options thin after 6 pm Saturday, which is the wrong time to find out your hotel sits 4 blocks from the nearest open kitchen.