From a costume swap to Monster Mash party to an orchestra playing “Harry Potter” film scores, South Whidbey is scaring up plenty of kooky-spooky fun for Halloween.

To make sure everyone is ready for the haunted happenings, the Family Resource Center in Langley has a costume swap that kicked off Oct. 5 and runs through Oct. 30. This is for anyone in the community to share-and-share alike, dropping off unused costumes or picking up “new” ones as needed.

The costume racks hang on a store rack, awaiting little “shoppers” to come and pick out a costume they love. There’s no cost involved and no need to bring one in order to get one. People can donate, receive or swap costumes on any Monday through Thursday this month from 9 a.m. to 5 p.m.

Cailyn Murray, a family support specialist and volunteer at Readiness to Learn, said that it’s also a “green” way to approach Halloween, encouraging the community to recycle and reuse.

Murray’s daughter, fourth grader June Murray, plans to dress as a wood elf this year and brought in two costumes from previous years, including a Harry Potter cloak that she’s reluctantly outgrown. But she’s happy to see them go to new people.

“It’s cool to get new costumes,” she said. “And ones that might be too small for you now might be just right for a different kid.”

For those looking for a place to show off their costumes the weekend before Halloween, there’s a spook-tacular way to do that in Freeland. Not to be confused with Langley’s Spooktacular trick-or-treating event on Oct. 31, the free SPOOK-TACULAR concert performance in Freeland takes place at 7 p.m. on Friday, Oct. 25 at Trinity Lutheran Church and at 3 p.m. Sunday, Oct. 27.

Members of the Whidbey Island Orchestra will be performing strings, winds, brass and percussion to music from “Harry Potter” and “Psycho” as well as “Night on Bald Mountain” and “Danse Macabre.” The orchestra, led by Conductor Dr. Cynthia Morrow and Assistant Conductor Gabriela Garza, includes musicians in their teens, eighties and every age in-between, according to Bobbie Mayer from the nonprofit orchestra group.

Dancers from Island Dance add to the aura of the evening, with young children dancing to the “Waltzing Cat” and older girls performing the “Danse Macabre,” which also includes a violin solo by Brain Kenney. A costume contest for adults and children takes place on each of the days, for those in the audience as well as for performers on the stage.

Another all-ages shindig taking place that weekend is the Family of Freaks Halloween dance on Oct. 26 at the newly spruced-up and painted Bayview Community Hall on Bayview Road. They invite everyone, young and old, to “bust a move” and “get your groove on” to live music with a spooky twist by Wind & Rain and DJ Hallpass. The doors open at 7 p.m. and music pumps out from 8 p.m. to midnight.

Over at the Whidbey Island Fairgrounds in Langley, the Whidbey Children’s Theatre gets their spook on as well. From 4 p.m. to 7 p.m. on Saturday the 26th, the sixth annual Monster Mash party features dancing, food, sweets, games and a raffle, in addition to a wild and wacky costume parade and a lip sync battle. It’s open to all ages and all families.

When the big day arrives, downtown Langley is where it all goes down. The annual Spooktacular trick-or-treat extravaganza commences at 2:30 p.m. as little goblins, ghosts, princesses and super heroes storm the downtown streets in a twirl of magical madness. It’s a family affair and everyone is invited to join (or watch) the fun.

Participating merchants, many wearing costumes themselves, will have treats for the kids during Spooktacular from 2:30 to 5 p.m. on Oct. 31.

Just look for the moon and crow sign in the window.