Your water. Your environment. Your voice.

Butterfly Festival

Michelle Leung
2016 Design Contest Winner: Michelle Leung

2016 Butterfly Festival
“Celebrating the Swallowtail”
Saturday, August 13 | 10AM-4PM

Click to Purchase Tickets Today!

Ticket Price at the Gate: $10 per person/ $25 per carload.
Admission is FREE for children 2 years and under.

Fun for the whole Family!

Our annual Butterfly Festival, held on the grounds of our 930-acre Watershed Reserve, has been a popular family event attracting around 3,000 visitors every summer. The event showcases the spectacular Kate Gorrie Butterfly House and the new Platinum LEED Certified Watershed Center. Last year’s Butterfly Festival featured live stage entertainment by the Dadz, local artisans, delicious food, an insect zoo, hay rides, nature walks, and our famous Butterfly and Bug Parade.

Visitors also enjoyed yoga and hula-hoop demonstrations, a Star Lab, parachute games, bubbles the size of cars, and a magic show. There were crafts for all ages including paper airplane construction and a quilt square coloring table. Visitors kept cool in our chill tent, played in our H2Olympics, and enjoyed tours of our new building.

Come see what we have in store this year at our 16th annual Butterfly Festival! Parking will be located across the street from the Watershed Center at Bristol-Myers Squibb for no additional cost. Free bus transportation will run throughout the day to the festival and parking areas.

Become a Festival Vendor or Exhibitor

Sponsorship Levels
Vendor Application Form
Insurance Form

We are pleased to invite you to join us at the 16th Annual Butterfly Festival. It will be held at the Stony Brook-Millstone Watershed Association, August 13th, 2016 from 10:00 a.m. to 4:00 p.m., on our 930-acre Watershed Reserve in Hopewell Township, NJ.

We are now accepting applications from vendors, exhibitors and performers to compliment our commitment to our community and environmental education. The Butterfly Festival is our largest annual educational event. It is an enlightening day focusing on the importance of maintaining the delicate balance between humans and the natural world.

This family-oriented day has grown to be a major regional event, attracting more than 3,000 visitors. The day will feature new and exciting ways in which the Watershed is fulfilling its mission to protect the environment and clean water. We invite you to join us in modeling ways to participate in the process of keeping our earth green and provide examples of planet-friendly choices to help support greener-living. We will feature local crafts and products and feature exhibitors and contributors with many types of art, crafts, music, photography, sculpture, etc.

There will be family oriented activities and workshops, art and entertainment. If you feel your services or products would help promote our mission and be of interest to those attending, please submit the application to attend. We reserve the right to limit types or vendors or not include those that do not support our mission.

We request that all participants help promote the Butterfly Festival through their own businesses, Facebook and other social media.

As a participant you will be asked to bring your own table, chairs, and tent for a 10 X 10 space. We strongly encourage you to evaluate what you are bringing to the event. Please take the time to consider each item: Is it recyclable, reusable or waste? Consider that some of the materials that you bring have a green alternative. Please note there is no charge to be an exhibitor, if you are just sharing your product, knowledge, art or skill, and not selling retail goods, but please register.

If you are interested in being a vendor, exhibitor or providing a program, please complete the forms attached by July 1, 2016 and return it to the Stony Brook-Millstone Watershed Association, 31 Titus Mill Rd., Pennington, NJ 08534. If you have any questions feel free to contact Suzanne or Tara at (609) 737-3735 ext. 28 or

Click to Purchase Tickets Today!

Click to view our photos from the 2015 Butterfly Festival



Nocturnal Geocache Adventure

Saturday, July 9, 8:00-10:30PM, Adults Only, $10 per person

Just for grown-ups...enjoy the fun of geocaching under the stars! Use your GPS and flashlight to navigate through the night to our rendezvous around a campfire for some summer refreshments. No pets or alcoholic beverages, adults only please. RSVP requested.

Click for more details on these programs, registration, fees, and more!

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