· Orleans Farmers Market, 8:00 AM, 21 Old Colony Way, Orleans

· HUGE FALL BARN SALE, 9:00 AM, Harwich Antique Center 10 Route 28 West Harwich, MA 02671

· South Yarmouth Fall Market, 10:00 AM, Howard Masonic Lodge, 20 Davis Rd., South Yarmouth

· Sandwich Farmers Market, 10:00 AM, Henry Wing School, 33 Water St, Sandwich

· Halloween Party with the Boston Museum of Science, 10:00 AM, Truro Public Library, 7 Standish Way, North Truro

· Winter Farmers Market, 10:00 AM, Ag Hall, 35 Panhandle Rd., West Tisbury

· Burgess Story Time at Green Briar, 10:30 AM, Green Briar Nature Center/Thornton W. Burgess Society, 6 Discovery Hill Road, East Sandwich

· Screech at the Beach 5k , 10:30 AM, The Raw Bar at Popponesset Market Place, 252 Shore Dr, Mashpee

· Halloween Kids Fest 2015!, 11:00 AM, Tony Andrew's Farm, 394 Old Meetinghouse Rd., East Falmouth

· Howl'oween Pawrade , 11:00 AM, Hot Diggity Dog Wash & Boutique, 677 Main St., Dennis Port

· Green Halloween, 11:00 AM, Cape Cod Museum of Natural History, 869 Main St.(Route 6A), Brewster

· Wicked Halloween Bash, 11:59 AM, Cape Cod Conservatory, 2235 Iyannough Rd., West Barnstable

· Dog Trick-or-Treat and Pet Parade, 1:00 PM, Hyannis Country Garden, 380 West Main St., Hyannis

· Big Ryan's Tall Halloween Tales, 1:30 PM, Snow Library, 67 Main St., Orleans

· 4EZ Payments, 1:30 PM, Cisco Brewers, 5 Bartlett Farm Road, Nantucket

· To Kill a Mockingbird, 2:00 PM, Harwich Jr Theatre, 105 Division St, West Harwich

· 26th Annual Safe Trick or Treat, 3:00 PM, Merchants along Main St., Hyannis

· Harvest of Horrors, 6:30 PM, Tony Andrews Farm, 394 Old Meeting House Rd., East Falmouth

· Dead Silence - Interactive Theatre, 7:00 PM, The Art House, 214 Commercial St., Provincetown

· Green Line Inbound, 7:00 PM, The Chicken Box, 14 Dave Street, Nantucket, MA

· The 100 Year-Old Man Who Climbed Out the Window and Disappeared , 7:00 PM, Falmouth Academy, Morse Hall, 7 Highfield Dr., Falmouth

· A Very Gorey Halloween Costume Ball with Siobhan Magnus, 7:30 PM, Cultural Center of Cape Cod, 307 Old Main St., South Yarmouth

· Sweeney Todd, 8:00 PM, Academy of Performing Arts Playhouse, 120 Main Street, Orleans

· Halloween Party with Daddy-O, 8:00 PM, JACKS Restaurant & Bar 327 Gifford Street Falmouth

· Halloween Comedy Show, 8:00 PM, Regatta Room, Double Tree by Hilton Hotels, 287 Iyannough Rd. Hyannis

· Big Fake, 10:00 PM, Duck Inn Pub, Main Street, Hyannis