Get your wings out for the 20th annual Watershed Butterfly Festival! Every year, we celebrate this day of family fun to share the joys and wonders of nature.

Tour the Kate Gorrie Butterfly House, where you can delight in the locally captured butterflies. Enjoy our train ride, animal show, an insect zoo, solar music, arts and crafts, and other entertainment.

Proceeds from this event help sustain our work in environmental conservation, advocacy, science, and education. The Watershed Institute is a member-supported non-profit dedicated to protecting and restoring clean water and healthy environments in central New Jersey.

The Watershed Center and Reserve are open daily. Attend a program, subscribe to our e-news, and become a member to stay involved in our work all year round! Thank you for your support.

Frequently Asked Questions

Children under the age of 2 are free.

The ATM is located inside the Watershed Center.

This is a rain or shine event. Activities are available indoors and under tent cover.

No. 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.

No. We ask that our visitors use the provided bus transportation to and from the parking area at Bristol-Myers Squibb and refrain from walking along the road and in traffic lanes.

Folding strollers can be brought on the shuttle. Handicap parking will be available on site.

Yes! There are bike racks on the Watershed Reserve.

We’re sorry, only service animals are permitted.

No outside alcoholic beverages are permitted on property. There will be non-alcoholic beverages available for sale.
Smoking is also prohibited on our campus.

There will not be alcohol featured at our event this year.

31 Titus Mill Rd. Pennington, NJ 08534 (Follow signs for parking)