Bard College at Simon's Rock, 84 Alford Road, will host from 8:30 a.m. to 1:30 p.m., its "Discovery Day."
Participants will hear about the Simon's Rock academic and residential programs from the provost and deans; participate in tours, interviews, sample classes; attend panels on financial aid and campus life.
Optional admission interviews will follow.
Info: simons-rock.edu or 413-528-7228
Matthew Noyes, horticulturist and grounds manager at the Clark Art Institute, 225 South St., Williamstown, will lead a free, all-ages tree identification hike up Stone Hill at 1 p.m. on Saturday.
Info: clarkart.edu or 413-458-2303
The family-oriented Naumkeag Pumpkin Trail is back, and will be open to all from 5 to 7:30 p.m., rain or shine, this Thursday through Saturday, at 5 Prospect Hill Road, Stockbridge.
Costumes are welcome and reservations for guided tours are recommended. Bring your own flashlights and walk along a pumpkin-lit garden trail where nocturnal woodland creatures from our local forests emerge to share their stories.
Sturdy shoes are encouraged as the trails are uneven. Cost $10-$20 general admission; free for children under age 3.
Berkshire Country Day School will host from 9 a.m. to 10:30 a.m. today, its "Little Penguins" fall toddler playgroups, for children ages 2 and 3, their parents or caregivers.
The additional sessions will be held on consecutive Tuesdays, Oct. 25 and Nov. 1.
Siblings are welcome, and registration is required at berkshirecountryday.org/penguins.
Info: 413-637-0755, ext. 116
"Happimess," a new arts education program for early learners, will offer hour-long fall-themed kids' story times and craft classes on Sunday at The Colonial Theatre, 111 South St., Pittsfield.
The program is designed for children ages 3 to 5, and their parents and caregivers.
The cost is $15 per child with guardian; some need-based scholarships are available.
At 9:30 a.m. and 12:30 p.m., read "The Biggest Pumpkin Ever" by Steven Kroll, then create pumpkin picture frames.
At 11 a.m., read "The Night of the Paper Bag Monsters" by Helen Craig, then make little yarn monsters.