Renee Gamba, museum director, left, and Dawn Valentim, museum educator, show off their Spooktakular Halloween attire with Gamba’s three buccaneers at the Museum of Natural History in Roger Williams Park, Providence.

Boo Bash, Providence Children’s Museum, 100 South St., Providence. 273-5437. Ages 3-11 join the friendly witch from the Pumpkin Patch Cafe for special treats, meet creepy critters like scorpions, snakes and lizards, play bewitching games and more. Wear your costume. Sun, 1-4 pm. $6.50, free under age 1.

Creepy Carnival, Slater Mill, 67 Roosevelt Ave., Pawtucket. 725-8638, www.slatermill.org. Creepy characters and ghoulish activities including tours. Sun, 11 am-3 pm. Free.

Creepy Crawly Family Fun, Museum of Natural History, Roger Williams Park, 1000 Elmwood Ave., Providence. 785-9457. Spooky stories, mystery guests, creatures, trick-or-treat bag. Includes haunted museum vault tours at 11 am, 1, 3 pm. Sat-Sun. $5, $4 under age 8; children under 4 not admitted.

Factory of Terror, corner of Pearl and Spring streets, Fall River. www.factoryofterror.com. Fri-Sat 6-11 pm; Sun 6:30-10 pm

Field of Screams, 179 Plain Meeting House Rd., West Greenwich. 884-7369; www.hauntedhayride.net. Psycho House of Horrors, Silver Load Ghost Town (haunted hayride), Area 51 Toxic Dump (4-D haunted maze). $15, children 12 and younger $13. Thu, Sun 6:30-9:30 pm; Fri, Sat 6:30-10 pm.

Fortress of Nightmares, Fort Adams, Fort Adams State Park, Newport. 841-0707, www.fortadams.org. Haunted tours through areas of the fort not usually seen on regular tours and learn the secrets hidden within the fort’s ancient walls. Fri-Sun, 6:30-9 pm. $10 (tickets sold at the Fort Adams Visitor’s Center 6:30-9 pm). Not recommended for children under age 12. Proceeds benefit the Fort Adams Trust.

A Halloween Afternoon, Westerly Armory, Railroad Avenue. Musica Dolce Youth String Ensemble concert (2 pm), the Big Nazo Puppets, mask making (1 pm), refreshments. Sun. Free with a pass available at the Westerly-Pawcatuck Branch of the Ocean Community YMCA before Sunday or by calling 596-5225.

Halloween Parade and Hayrides, meet at the Aspray Boat House, Narragansett Parkway, Warwick, Sat at 8:30 am to march to Rhodes-on-the Pawtuxet, Cranston. Wear a costume. Hay rides 9 am-1 pm; $2, $5 family. www. pawtuxetvillageassociation.org. Rain date Sat, Nov. 3.

Halloween Party, Oakland Beach Volunteer Firemen’s Club, 645 Oakland Beach Ave., Warwick. 739-9631. Sat, 7 pm. $10 includes dinner and music.

Halloween Party, Bayside Family YMCA, 70 West St., Barrington. 245-2444. Costume parade, spooky stories, goodies and Regal Reptiles. Kids gym, treats. Sat, 5-7 pm. Members: $6, child $4; nonmembers: $8, child $6.

Halloween Party, St. Ann Arts and Cultural Center, 84 Cumberland St., Woonsocket. 455-0079. Dancing, food, games. Costume optional. Sat, 7-11 pm. $10, $5 ages 5-11, free under age 5; $20 family

Halloween Party for Children, Joy Homestead, 156 Scituate Ave., Cranston. 944-9226, www.cranstonhistoricalsociety.org. For age 12 and younger. Sat, 1-4 pm. $7, $5 members. Proceeds benefit the Joy Homestead and the Cranston Historical Society. Children must be accompanied by an adult.

Haunted Corn Maze, Vadenais Farm, 65 Pine Swamp Rd., (Rt. 14), Cumberland. Fri-Sat, dusk-10 pm. $10. Weather permitting.

Haunted House Maze, North Scituate Community House, West Greenville Road, Scituate. Sun, 6:30-9 pm. Donation is a non-perishable food item for the community food bank. Apple Valley Girl Scouts event.

Haunted House and Halloween Party, Central Congregational Church, 296 Angell St., Providence. Haunted house tours (begin at 6 pm), Halloween activities and games, refreshments, entertainment. Sat, 5-9 pm. $5, $15 family. Boy Scout Troop 28 event.

Haunted Labyrinth, Rejoice in Hope Youth Center, 804 Dyer Ave., Cranston. 943-8686 or www.hauntedlabyrinth.com. Indoor waiting. Thu-Sun, 7-10 pm. $10. Proceeds benefit the Center.

Historic Ghost Tours, depart from St. Mary’s Church (lower lot), 70 Church St., West Warwick. 821-9726, 615-9666, www.pvhistorian.com. Lantern-led walking tour of Crompton Village with stories of ghost sightings, ghostly visits and paranormal happenings along the way. Fri-Sat, 7 pm. $15.

Howl-O-Ween Costume Party for Dogs, Faxon Animal Rescue League, 474 Durfee St., Fall River. (508) 676-1061. Refreshments will be served to the dogs and their humans. Sat, 10 am-2 pm. Free.

Jack-o’-Lantern Spectacular, McCoy Stadium, Pawtucket. 724-7300, www.pawsox.com. More than 5,000 illuminated and artfully carved pumpkins on display. Sun-Thu 6-10 pm, Fri & Sat 6-11 pm. Last entry 45 minutes before closing. $12, $8 ages 3-12 and 62+, free under age 3.

Mysterious Mill Walk, Slater Mill, A Living History Museum, 67 Roosevelt Ave., Pawtucket. 725-8638. Games, ghouls, goodies and costume parade in a child-friendly atmosphere (2nd floor). Sat, 6-9 pm. $5.

Old Town Ghost Walk, departs from Fathoms Restaurant, Newport Marriott, America’s Cup Avenue, Newport. 841-8600. Lantern-led stroll down historic Newport’s shadowy lanes to discover the ghost, ghouls and legends of the city by the sea. Daily, 8 pm. $18, $10 age 5-10, free age 4 and younger.

Providence Ghost Tour, 90-minute walking haunted history tour of the East Side of Providence, leaves from Prospect Terrace (Roger Williams Statue, Congdon Street). www.providenceghosttour.com. Thu-Sun, 7 pm. $12 online, $15 in person, $5 child.

Providence Ghost Walks, walking tour of haunted Providence leaves from in front of the Providence Athenaeum, corner of Benefit and College streets. Sat-Sun at 3 pm. $7. 454-0977, www.roryraven.com.begin

Sea Scare, Mystic Aquarium & Institute for Exploration, 55 Coogan Blvd., Mystic, Conn. (860) 572-5955. Experience the haunting of the deep and dark waters of the ocean.Fri-Sat, 6:30-10 pm; admission closes at 9 pm. $18.50, $13.50 ages 3-17, free age 2 and younger.

Shadowland Haunted Trails, Attleboro Farms, 491 Hickory Rd (Rt. 120), North Attleboro. (508) 695-7200; www.attleborofarms.com. $8, $4 under age 12. Thu-Sun 6:30-9:30 pm. Not recommended for children under age 12

Spooky Nature Trail, Denison Pequotsepos Nature Center, 109 Pequotsepos Rd, Mystic. (860) 536-1216. Self-guided hike through the haunted woods features jack-o-lanterns and magical creatures. Participants also meet creepy creatures, enjoy treats and cider, spooky crafts, games and up-close visits with the Center’s snakes, turtles and frogs. Fri-Sat, 5:30-7:30 pm. Members: $6, $24 family max; nonmembers, $8, $32 family max. Bring a flashlight. Registration.

Spooky Zoo Sundays, Roger Williams Park Zoo, 1000 Elmwood Ave., Providence. 785-3510, 751-0203 (TDD), www.rogerwilliamsparkzoo.org. Trick-or-treating, storytelling, creepy crawly critter encounters, costume parade, Halloween activities. Sun, 10 am-3 pm. Activities included in zoo admission of $12, $8 seniors, $6 ages 3-12, free under age 3.

Things That Go Bump in the Night, Valentine Whitman Jr. House, Great Road, Lincoln. 334-2182. Ghost, ghoulies and vampires come to life with stories of the dark side. A candle light tour follows the show. Fri, 7-9 pm. $10. Reservations.

Third Dimension: Halloween Costumes and Activities, RISD Museum, 224 Benefit St., Providence. 454-6674. Halloween-themed activities for the whole family Sat, 11 am-4 pm. The Legend of Sleepy Hollow, performed by The Puppet People, at 3 pm. Admission, all activities and refreshments are free.

Trails to Terror, Highland Farm, 4235 Tower Hill Rd., Wakefield. 792-8188, wwwtrailstoterror.com. Haunted hayride and walk on a farm. Thu-Sun, 7-10 pm. $12 each or $18 for the hayride and walk.