Limited-Time Themes
HallowGlow takes over Grand Park throughout October after Wizarding World opened the fall season.
Fall at TreeRunner • Westfield, Indiana
Fall nights belong in the trees.
This fall, TreeRunner Grand Park transforms after dark with a limited-time Night Forest experience. HallowGlow lights up the forest every weekend in October, following two September weekends of Wizarding World.
Ages 7+
8 Aerial Trails
Nighttime Climbing
October 2026
Grand Park • Westfield
TreeRunner After Dark
The same forest adventure. A completely different atmosphere.
Climb after sunset as lighting, music and seasonal details transform the Aerial Forest for fall. Choose your weekend and experience TreeRunner after dark.
Climb After Dark
The aerial trails take on an entirely different feel once the sun goes down.
Fall Weekends
HallowGlow takes over every weekend in October after Wizarding World wrapped up in September.
2026 Fall Experiences
Pick your fall night.
HallowGlow is the featured October Night Forest experience at TreeRunner Grand Park.
October
HallowGlow
October nights light up the forest.
Every Weekend in October
Climb into HallowGlow.
October 2–4, 9–11, 16–18, 23–25 & 30–31HallowGlow takes over TreeRunner throughout October with a colorful fall Night Forest experience. Climb and zip after dark surrounded by glowing lights and a festive seasonal atmosphere.
- Nighttime climbing & ziplining
- Glowing fall atmosphere
- Every weekend in October
- Halloween weekend dates included
September
Wizarding World
Magic takes to the treetops.
Wrapped for 2026
Wizarding World has wrapped for 2026.
September 18–19 & 25–26For two weekends in September, Night Forest took on a magical twist with themed lighting, music and atmosphere throughout TreeRunner Grand Park.
- Nighttime Aerial Forest experience
- Wizarding-themed atmosphere
- Two limited September weekends
- Adventure across TreeRunner's aerial trails
Save the Dates
HallowGlow
Your 2026 fall calendar.
Five HallowGlow weekends light up the forest throughout October.
October
October 2–31Five weekends of HallowGlow, including Halloween weekend.
Oct. 2–4
Oct. 9–11
Oct. 16–18
Oct. 23–25
Oct. 30–31
October at TreeRunner
HallowGlow Is For You If...
Make October a night in the trees.
HallowGlow brings colorful lights and a festive after-dark atmosphere to TreeRunner every weekend in October.
October is your favorite time to be outside.
HallowGlow runs every October weekend and brings the season into Night Forest with colorful lights and a festive after-dark feel.
New to Night Forest?
It's TreeRunner after dark.
Night Forest takes the Aerial Forest experience into the evening. You'll gear up, complete the required orientation and head into the aerial trails as the forest lights up around you.
Know Before You Go
Plan your fall night at TreeRunner.
Ages 7+
Aerial Forest participation begins at age 7. Course access and adult participation requirements vary by age.
View Age Guidelines →Dress for Adventure
Wear comfortable clothing appropriate for outdoor movement and closed-toe, closed-heel shoes.
Prepare for Your Visit →We're Inside Grand Park
TreeRunner is located inside Grand Park Sports Campus in Westfield. Check directions and parking before heading out.
Directions & Parking →Reserve Your Night
These are limited seasonal experiences. Booking ahead gives you the best chance of getting the date and time you want.
Give Yourself Campus Time
Grand Park is a large campus. Give yourself enough time to park, walk to TreeRunner and complete check-in before your reservation.
Check Your Reservation Time
Event availability and start times can vary by date. Your online ticket selection is the best source for available reservation times.
View Hours & Pricing →
Weather & Park Conditions
Fall weather can affect park operations.
TreeRunner is an outdoor adventure park. Review our weather and rain policy before your visit, especially when fall conditions are changing.
View Weather & Rain Policy →
Fall Festivities FAQs
Before you head into the trees.
Is Wizarding World still running?
Wizarding World concluded on September 26, 2026. HallowGlow now runs every weekend in October.
When is HallowGlow at Grand Park?
HallowGlow runs October 2–4, 9–11, 16–18, 23–25 and 30–31, 2026.
Is HallowGlow every weekend in October?
Yes. HallowGlow takes place every weekend in October 2026. The first four weekends run Friday through Sunday, followed by Friday and Saturday on October 30–31.
How old do you have to be to participate?
Aerial Forest participation begins at age 7. Course access and adult participation rules vary by age. Review our age guidelines before booking.
Is HallowGlow a haunted attraction?
HallowGlow is a themed nighttime TreeRunner climbing experience rather than a traditional haunted attraction. The focus remains on climbing, ziplining and enjoying the forest after dark.
Should I buy tickets ahead of time?
We recommend reserving ahead for special seasonal events so you can choose from the available dates and reservation times before they fill.
What happens if the weather is bad?
Weather can affect outdoor operations. Review our Weather & Rain Policy before your visit if conditions are uncertain.
Have a Question?
Talk to our Grand Park team.
Need help choosing a date or planning your visit? Reach out to TreeRunner Grand Park directly.
Which fall night are you climbing?
Climb through HallowGlow every weekend in October as the forest lights up around you.