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Great Swamp Outdoor Education Center

Frelinghuysen ArboretumThe Great Swamp was created approximately 15,000 years ago, when the melting waters of the Wisconsin Glacier poured into the natural basin known as the Passaic Valley. However, the Great Swamp is not entirely swampland but rather a mixture of marshes, meadows, dry woods and brush-covered swamps. It is the intermingling of these four habitats that gives the Great Swamp its unique character, allowing the swamp to support a wide variety of plant and animal life.

As visitors walk along trails and over boardwalks, they can observe plants varying in size from the tiny duckweed to the towering red oak. A multitude of colors emerge, from the yellow marsh marigold to the blue iris. And some visitors are rewarded with sightings of the wildlife that make the Great Swamp their home. Learn more about this living, breathing botanical and zoological resource with a visit to the Great Swamp Outdoor Education Center. Numerous environmental programs for all ages are also available.

We have numerous volunteer opportunities. If you are interested, please fill out our volunteer form!

Park Features
  • Classrooms Handicapped Accessible Accommodations
  • Interactive Nature Exhibits
  • Meeting Rooms (reservable) Handicapped Accessible Accommodations
  • Observation Blind
  • Pond Observation Deck
  • Seasonal Program Schedule
  • Trails
  • Visitors Center Handicapped Accessible Accommodations
  • Pets Not Welcome
  • Restrooms Handicapped Accessible Accommodations
Things To Do
  • Birthday Parties*
  • Commercial Filming*
  • Commercial Photography*
  • Public Educational Programs*
  • Guided Nature Hikes*
  • School Programs*
  • Scout Programs*
  • Self-Guided Nature Hikes
  • Special Events*
  • Summer Camp Programs*
  • Teacher Certification Programs*
  • Visitors Center Exhibits Handicapped Accessible Accommodations

*Requires permit/advanced scheduling



New Jersey Monthly - Jersey Choice 2012

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