• It’s the Mt. Cuba Center’s Tree Festival, Saturday. Sept. 25 from 10 a.m. to 6 p.m. See trees in their autumn glory and learn how they add beauty and value to our landscapes. Enjoy unique family-friendly programs, kids’ tree-climbing, live music, and more. Food, beverages, and plants will be available to purchase. The festival is included in general admission, free for members. For more information or tickets, visit the website.

• Concord Crossing Homeowners Association is holding a yard sale at Concord Crossing— Naamans Creek and Shavertown roads — on Saturday, Oct. 2, from 9 a.m. to 1 p.m. The rain date is Sunday, Oct. 3.

• Take a walk on the dark side on Oct. 2. It's Chilling West Chester 2: A Dark History Walking Tour. Beginning at the Chester County History Center, the tour is approximately 1.5 miles. Guests will hear macabre stories from West Chester's history while visiting some notable downtown landmarks. These aren't just ghost stories; these are true tales of terror pulled from our archives. Tours will run on various dates during October, with the next scheduled for Saturday, Oct. 2, from 11 a.m. - 12:30 p.m. The cost is $16. Go here for tickets.

• Concord Township joins Darlington Arts Center as part of Delco Arts Week on Oct. 9 fr0m noon to 4 p.m. at the township park on Smithbridge Road. The afternoon is dedicated to families participating in arts activities, painting a fall scape, and listening to live music. For more information, contact Eric Thompson, Darlington's executive director, at eric@darlingtonarts.org.

• The Chester County Art Association has October workshops for children and teens. Workshops — five in all — go from 6-9 p.m. beginning Oct. 4 and through Oct. 20. For more information, send an email to assistant@chestercountyarts.org. In addition, following CDC guidelines, masks are now required for all individuals participating in classes, workshops, and events being held indoors at the Chester County Art Association.

• LCH Health and Community Services (LCH) will host their fifth annual Amigos LCH event on Friday, Oct. 15, from 7-8 p.m. This is the second year that the event will remain virtual. The event will celebrate the theme of the fall harvest, putting a spotlight on the many local farms in the area. Registered guests will receive a box of goodies to help them celebrate fall. Tickets are $50 per person and are available by visiting LCHcommunityhealth.org/event/amigos/. Register by Oct. 1 to guarantee your event goodie box. All proceeds will go towards LCH’s direct services, with a focus on mental health care.