Indoor Playspaces

67 Kirk St., Lowell www.nps.gov/lowe Visit textile mills, worker housing, six miles of canals, and 19th century commercial buildings. Activities include boat and trolley tours, junior ranger certification, and hands-on exhibits. Free under age 6.

Middlesex Fells Reservation

Extensive trails in Malden, Medford, Melrose, Stoneham and Winchester www.mass.gov/locations/middlesex-fells-reservation Offers a welcome retreat and extensive terrain for hikers, runners, mountain bikers, horseback riders, rock climbers, cross-country skiers and picnickers.

Minuteman National Historic Park

Concord, Lexington and Lincoln Directions to the visitor center are available on the website. www.nps.gov/mima Walk or bike the scenic five-mile Battle Road trail which ends at the North Bridge. Volunteers in period clothing, demonstrations of colonial activities, historic structures, and educational programs.

Nashoba Valley

79 Powers Rd., Westford www.skinashoba.com Full service ski area with lessons, rentals, and snowboarding park. Also offers a children’s camp in the summer.

Prospect Hill Park

314 Totten Pond Rd., Waltham www.city.waltham.ma.us Great picnicking at this 250-acre wooded park which is the second highest point in Greater Boston. Playground, picnic areas and paved walking trails.

South Bridge Boat House

496 Main St., Route 62, Concord www.southbridgeboathouse.com Canoe launch and rentals available for floating down the scenic Concord River to Old North Bridge.

Walden Pond State Reservation

915 Walden St., Route 126, Concord www.mass.gov/locations/walden-pond-state-reservation Trail (1.5 mile) around Walden Pond past the site of Thoreau ’s cabin. Wonderful beach for swimming in summer. Parking fee: $8.

Wachusett Mountain Ski Area

499 Mountain Rd., Princeton www.wachusett.com Activities include a full service ski resort offering lessons and rentals and 17 miles of hiking trails, some trails originating at Wachusett Mountain State Reservation.

Wayside Inn Historic Site

72 Wayside Inn Rd., Sudbury www.wayside.org A historic site situated on 106 acres includes one of the oldest operating inns in the country, a museum, operating grist mill, and one-room schoolhouse.

Weston Ski Track

190 Park Rd., Weston www.skiboston.com Cross-country ski area with rentals and lessons.

Hours and services may have changed. Please call to confirm.

Belmont Kidspace

365 Belmont St., Belmont www.belmontkidspace.org A parent-run, cooperative, indoor play space for families with babies and preschoolers. Membership and drop-in pricing available. Temporarily closed.

Blue Wave Recreation

20 Carter Street, Tewkesbury www.bluewaverecreation.com Inclusive, autism-friendly recreation for all ages and abilities, specializing in children with needs. Offers adaptive basketball, yoga, field sports in the indoor turf field, art studio and sensory room. Drop-in rates and memberships available. Free under 3. Temporarily closed.

Burlington Mall Play Space

75 Middlesex Turnpike, Burlington Located upper level by the Food Court. Free and open daily during mall hours.

Einstein’s Workshop

25 Adams St., Burlington www.einsteinsworkshop.com A hands-on learning center where children and adults explore the creative side of science, technology, engineering, and math (STEM). Offering classes, drop-in and parties. Drop-in rates and classes. Free under 4 years.

Jam Time

86 Powder Mill Rd., Maynard www.jamtime.com Premiere indoor play and enrichment center for children and toddlers. Offering classes, open play and birthday parties. Drop-in pricing available. Temporarily closed.

Jump On In!

233 West Cummings Park, Woburn jumponinfun.com/woburn New England’s first indoor inflatable and jumping facility offering parties and open jumping sessions.

Kidstock! Creative Theater

50 Cross St., Winchester www.kidstocktheater.com Interactive indoor pre-K playspace with structured activities, such as story time, dramatic play, music and movement, and art café. Open October-May.

One Stop Fun

49 Powers Rd., Westford www.onestopfun.com Three stories of tubes and tunnels for climbing and exploring, a wave slide, a separate toddler area and a rock wall. New in 2018: outdoor pool with water slides. Membership and drop-in options available.

Ready, Set, Kids!

284 Broadway St., Arlington www.ready-set-kids.com A comprehensive enrichment, learning and fitness center working to nurture the minds and bodies of our community ’s children and families.

VinKari Safari

10 Micro Dr., Woburn www.vinkarisafari.com/wp Indoor playground with climbing structures, ride-on toys, inflatables and more. Drop-in play and parties. Monthly membership pricing available.