FOPOS FALL FEST 2025
Schedule
Sun Sep 28 2025 at 04:00 pm to 06:00 pm
UTC-04:00Location
Mountain Lakes House | Princeton, NJ

About this Event
Join Friends of Princeton Open Space on Sunday, September 28th for our annual Fall Fest fundraiser at the Mountain Lakes House, overlooking the beautiful lake at the Billy Johnson Mountain Lakes Nature Preserve in Princeton, New Jersey.
Your Ticket Makes a Difference and Includes:
🎶 Live Music – Relax with great tunes in a stunning natural setting
🌱 Delicious Plant-Based Fall Foods – Enjoy a spread of delicious fall fare
🍻 Craft Beverages – Sip on local beer, hard cider, and refreshing non-alcoholic drinks
🌻 Nature-Themed Fun – Hands-on activities for kids and adults alike
Event Details:
Date: Sunday, September 28, 2025
Time: 4:00 p.m. – 6:00 p.m.
Location: Mountain Lakes House, 57 Mountain Avenue, Princeton, NJ
Tickets:
- Early Bird: $60 per person (plus online ticket fee) — available through September 21
- General Admission: $70 per person (plus online ticket fee) — starting September 22
- Children 12 and under: Free, but must be registered in advance
- Ticket payments by check can be made payable to "Friends of Princeton Open Space" and mailed to PO Box 374, Princeton, NJ 08542.
FOPOS Fall Fest is rain or shine. Attendees must be 21 or older to be served alcohol.
Every ticket supports:
🌿 Free community environmental education programs
🌞 Paid summer internships that grow future environmental leaders
🧤 Community-powered land stewardship projects that protect and restore our public open spaces
This event is more than just a good time; it's a celebration of the people who power our mission: volunteers, interns, and partners who help protect and care for our local environment. Celebrate the changing season, connect with your community, and help us grow our impact.
Support a Greener Future — Become a Fall Fest Sponsor!
Your sponsorship fuels FOPOS’s mission to protect open space, restore natural habitats, and connect our community to nature. Every sponsorship includes Fall Fest tickets and public recognition, both at the event and in promotional materials leading up to it.
Sponsorship Levels:
- White Oak Champion – $2,500 (Includes 10 tickets)
- Red Maple Guardian – $1,000 (Includes 4 tickets)
- Pawpaw Tree Protector – $500 (Includes 2 tickets)
- Serviceberry Supporter – $250 (Includes 1 ticket)
For more information about sponsorship levels and associated benefits, please email [email protected] with FALL FEST in the subject line. Sponsorship checks can be made payable to "Friends of Princeton Open Space" and mailed to PO Box 374, Princeton, NJ 08542.
Parking:
Free parking is available in the event parking lot near the Mountain Lakes House or in the public lot on Mountain Avenue with "Billy Johnson Mountain Lakes Nature Preserve" signage. No parking is permitted in the driveway of the Mountain Lakes House. You may drop-off in the driveway.
About FOPOS:
Friends of Princeton Open Space is a qualified 501(c)(3) charitable organization established in 1969 that has contributed nearly $10 million in privately raised funds, government grants, and funds raised from the rental of Mountain Lakes House to acquire and steward open space in Princeton, New Jersey for the benefit of all residents and visitors. FOPOS has helped preserve over 1,800 acres and helped establish a trail network that nearly encircles Princeton. Through our restoration work, educational programs, and internship opportunities, we empower community members, especially young people, to become stewards of the land. For more information about FOPOS, please visit fopos.org.
If you are unable to attend, please consider supporting FOPOS with a donation. Simply







Where is it happening?
Mountain Lakes House, 57 Mountain Ave, Princeton, United StatesEvent Location & Nearby Stays:
USD 0.00 to USD 65.87
