Good plans,
already made.

Tue · Oct 27·5 PM – 7:30 PM·Grove Hall, Dorchester · Boston

Costume contest, spooky photo booth, crafts, candy, and music fill Grove Hall’s annual HALL‑oween party for all ages.

Tue · Oct 27·10 AM – 11:45 AM·Keys Community Room · Milton

Halloween-themed concert with Franc Graham kicks off the jamboree in lower-level Keys Community Room, followed by trick‑or‑treating and a craft in Story Hour Room, for ages 3–12.

Tue · Oct 27·6:30 PM – 8 PM·Large Meeting Room, Cary Memorial Library, 1874 Massachusetts Avenue, Lexington, MA, 02420

Slightly scary stories and creepy Halloween crafts in the Large Meeting Room, supplies and instructions provided, staff on hand, all ages, children under 8 need adult.

Tue · Oct 27·6 PM – 6:45 PM·Polonia Park, 37 Trement Street, Chelsea, MA

Grand Reopening of Polonia Park (Polonia Park, Chelsea) — Modern playground equipment, fenced dog park, shaded picnic area, splash pad, new seating, and fresh trees and plantings.

Wed · Oct 28·4 PM – 5 PM·West End, Boston

Esther Gomez leads a Día de Muertos celebration at West End, guiding participants in building an ofrenda, wearing monarch wings, and sharing Pan de Muerto for all ages.

Wed · Oct 28·10:30 AM – 11:30 AM·Roslindale, Roslindale · Boston

City Ballet of Boston performs jazzy‑ballet excerpts from Ben’s Trumpet, followed by a book reading and dance lesson from a teaching artist, for ages 3–8.