Jack-O-Lantern Spectacular, 6pm, Roger Williams Park Zoo, 1000 Elmwood Ave., Providence, R.I. A nighttime display of 5,000 illuminated jack-o-lanterns, many of them professionally carved masterpieces. Through Nov. 6. $12-18. 401-785-3510; rwpzoo.org.
Pumpkin Carving, 4-7pm, Oak Knoll Wildlife Sanctuary, 1417 Park St., Attleboro. Help carve pumpkins for Saturday’s Spooktacular at Attleboro Springs. Bring your own pumpkin. Registration required. FREE. 508-223-3060; massaudubon.org.
Frightful Fridays, 7 & 8:15pm, Gore Place, 52 Gore St., Waltham. The 1806 Gore mansion provides the perfect setting for an evening of spooky tales and haunted activities. Fridays through Oct. 28. $15. 781-894-2798; goreplace.org.
Halloween Spooktacular, 5-8pm, Attleboro Springs Wildlife Sanctuary, 1417 Park St., Attleboro. Take a non-scary stroll along pumpkin lit trails and meet friendly costumed forest inhabitants along the way. Registration required. 508-223-3060; massaudubon.org.
Doggy Days: Howl-o-ween, 10am, The Discovery Museums, 177 Main St., Acton. Abby the therapy dog needs help deciding on a Halloween costume. Great for kids who may be shy around dogs. Free with admission. 978-264-4200; discoverymuseums.org.
Halloween Happenings, 6pm, Ipswich River Wildlife Sanctuary, 87 Perkins Row, Topsfield. Take a guided walk along a Halloween trail lit by pumpkins and luminaries. Meet evening creatures and warm up at the bonfire with treats. Registration required. $10. 978-887-9264; massaudubon.org.
Pumpkin Fest 2016, 6:30pm, Stony Brook Wildlife Sanctuary, 108 North St, Norfolk. Bring your own pumpkin for carving, then take a moonlit stroll. Registration required. Adults, $11; youth, $8. 508-528-3140; massaudubon.org.
Boo at the Zoo, 11am – 3pm, Stone Zoo, 149 Pond St., Stoneham. Trick-or-treat among the animals, create creepy crafts, run a haunted maze, watch the animals interact with pumpkins and more. Free with admission. 781-438-5100; stonezoo.org.
Great Pumpkin Fest, 2-9pm, EcoTarium, 222 Harrington Way, Worcester. More than 1,000 carved pumpkins will be lit, plus enjoy trick-or-treating, entertainment and more. $16. 508-929-2700; ecotarium.org.
Halloween Night Hike and Hayride, 6pm, Wachusett Meadow, 113 Goodnow Road, Princeton. Experience the sounds of the night on a guided hike and hayride, then warm up at the bonfire. Adults, $9; youth, $5. 978-464-2712; massaudubon.org.
Fall Pumpkin Festival, time TBA, Boston Common Frog Pond, Boston. Bring your carved pumpkin to join the others on an illuminated float. Stay for treats, a parade, music and child-focused activities. FREE. 617-635-2120; bostonfrogpond.com.
Boo at the Zoo, 11am – 3pm, Stone Zoo, 149 Pond St., Stoneham. See Oct. 22 listing.
Down on the Farm: Fall Concert, 4pm, Appleton Farms, 219 County Road, Ipswich. Rust Never Sleeps will play a concert surrounded by lit pumpkins (bring yours!). Join the costume parade and meet the farm animals. $35 per car. 978-356-5728; ttor.org.
Pumpkins at Powisset, 4pm, Powisset Farm, 37 Powisset St., Dover. A hand-on cooking class for kids, focusing on desserts – pumpkin whoopie pies! $25. 508-785-0339; ttor.org.
Carve a Pumpkin, 1-8:30pm, Moose Hill Wildlife Sanctuary, 293 Moose Hill Parkway, Sharon. Help carve pumpkins for the annual Halloween Prowl. Bring your own carving sets/knives. FREE. 781-784-5691; massaudubon.org.
Not Too Scary Ghostly Gathering & Pumpkin Roll, 4-7pm, Eleanor Cabot Bradley Estate, 2468B Washington St., Canton. Wear your costume and join a holiday tour of the estate and a pumpkin roll at 4:30pm. FREE. 508-636-4693; ttor.org.
Spooky Science, 10am, The Discovery Museums, 177 Main St., Acton. Use a little spooky science to create some strange substances like slime and oobleck. Free with admission. 978-264-4200; discoverymuseums.org.
Haunted Attic Tours, 3, 5 & 7pm, The Old Manse, 269 Monument St., Concord. See the seldom-seen attic and hear spooky tales on a special tour. Costumes welcome. Through Oct. 30. Adults, $10; youth, $5. 978-369-3909; ttor.org.
Tales of the Night, 6:30pm, Drumlin Farm, 208 South Great Road, Lincoln. Prowl the farm with curious creatures of the night on candlelit paths. Take a haunted hayride or a stroll on the story trail. Registration required. $15. 781-259-2200; massaudubon.org.
Pumpkin Trail, 5pm, The Stevens-Coolidge Place, 137 Andover St., North Andover. Take a non-scary walk on a pumpkin-lit trail where nocturnal creatures will emerge to share stories. Reservations suggested. Adults, $10; youth, $5. 978-356-4351; ttor.org.
Wild Walks – Halloween Style, 5pm, World’s End, Hingham. Bring your little ones dressed up as their favorite creature for a Halloween twist on the Wild Walk. With treats and activities. Youth, $10. 781-740-7233; ttor.org.
Halloween Prowl, 5:30pm, Moose Hill Wildlife Sanctuary, 293 Moose Hill St., Sharon. Discover the history of Halloween from a Druid and then encounter costumed characters along a candle-lit trail. $9. Through Oct. 30. 781-784-5691; massaudubon.org.
Ooey Gooey Pumpkin Science, 2-4:30pm, The Discovery Museums, 177 Main St., Acton. What does the inside of a pumpkin feel like? How many seeds are inside? Explore these questions and more. Free with admission. 978-264-4200; discoverymuseums.org.
Haunted Halls, 9am – 5pm, Museum of Science, 1 Science Park, Boston. Festivities include a dance party, costume contest, spooky scavenger hunt and Halloween versions of popular activities and presentations. Free with admission. 617-723-2500; mos.org.
Zoo Howl, 11am – 3pm, Franklin Park Zoo, 1 Franklin Park Road, Boston. Trick-or-treat among the animals, explore a haunted maze, watch the animals interact with pumpkins and more. Free with admission. 617-541-5466; franklinparkzoo.org.
Pumpkins, Pumpkins, Pumpkins, 1-3pm, Boston Nature Center, 500 Walk Hill St., Mattapan. Carve a pumpkin, take part in pumpkin seed experiments and contests. Registration required. $9 ($5/pumpkin or bring one). 617-983-8500; massaudubon.org.
Day of the Dead Celebration, 3pm, Villa Victoria, 85 W. Newton St., Boston. Boston pan-Latin ensemble Sol y Canto teams up with Veronica Robles and her mariachi group for a concert. FREE. 617-598-3225; celebrityseries.org.
Pumpkins in the Park, 1-7pm, Francis William Bird Park, Polley Lane, East Walpole. Help carve and decorate pumpkins from 1-3pm ($5 each), then return at 5pm for a pumpkin contest, games, stories and more. FREE. 508-668-6136; ttor.org.
Halloween at Hutch, 4-6pm, Governor Hutchinson’s Field, Adams Street, Milton. Wear your costume and come ready to play Halloween games and meet costumed characters. Bring your carved pumpkin to display. Adults, $5; youth, $3. 617-542-7696; ttor.org.
Halloween Treats, 10am – 5pm, Fruitlands Museum, 102 Prospect Hill Road, Harvard. Decorate a spooky mask and trick or treat at the museum buildings. Kids, wear a costume for free admission! 978-456-3924; fruitlands.org.
Haunted Halls, 9am – 5pm, Museum of Science, 1 Science Park, Boston. See Oct. 29 listing.
Zoo Howl, 11am – 3pm, Franklin Park Zoo, 1 Franklin Park Road, Boston. See Oct. 29 listing.
Day of the Dead Family Celebration, noon to 4pm, Peabody Museum, 11 Divinity Ave., Cambridge. Decorate sugar skulls, make papel picado (cut-paper banners) and hear live mariachi music as you remember and welcome back the spirits of loved ones. Free with admission; $5 per sugar skull. 617-496-1027; peabody.harvard.edu.
Pumpkins, Pumpkins, Pumpkins, 1-3pm, Boston Nature Center, 500 Walk Hill St., Mattapan. See Oct. 29 listing.
Boo Bash, 11am – 2pm, Providence Children’s Museum, 100 South St., Providence, R.I. Come in costume and have a blast with games, crafts and a mad scientist’s laboratory. Free with admission. 401-273-5437; childrenmuseum.org.
Last Minute Nature Costumes, 10:30am – 12:30pm, The Discovery Museums, 177 Main St., Acton. Make a magic wand, nature crown or other Halloween costume using things found outdoors. Free with admission. 978-264-4200; discoverymuseums.org.
Sleepy Hollow-een Tour, 3:30pm, Concord Museum, 200 Lexington Road, Concord. Take a tour through Sleepy Hollow Cemetery with a Concord Museum historian as your guide. Registration required. $10. 978-369-9763; concordmuseum.org.
Haunted Hillside, 6-9pm, Fruitlands Museum, 102 Prospect Hill Road, Harvard. Follow the candle-lit paths and listen to tales of ghosts and spirits. Adults, $15; youth, $5. 978-456-3924; fruitlands.org.
Spooky Story Hour & Halloween Craft, 10am, Powisset Farm, 37 Powisset St., Dover. A spooky Halloween-themed story hour with a pumpkin craft project. Wear your costume! $5. 508-785-0339; ttor.org.