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Parks After Dark Science Program Series

Parks After Dark Science Program Series, A log cabin with smoke coming out of the chimney sits below a starry sky. A bat flies next to the P in Parks, a moth perches on the R in After, and the A in Dark is replaced with a firefly.

NPS Image / G. Purifoy

A small animal hanging upside down from a grey rock. It is ovular in shape with light brown fur. Its wings can be seen at its sides and held close to its body. They wings are dark brown and leathery. Its ears, nose, and face are slightly pink.
Northern long-eared bat

U.S. Fish and Wildlife Service

Parks After Dark Programs

The Parks After Dark Science Programs are guided educational experiences designed to help participants understand the value of the night sky, natural darkness, and the importance of nocturnal species in our environment.

For many years, light pollution has been increasing worldwide and continues to grow rapidly. The lightening of our night skies affects a wide range of natural resources, including nocturnal species at Valley Forge National Historical Park.

During Parks After Dark events, attendees will gain first-hand experience in natural resource management by participating in citizen science and inventorying target nocturnal species. Events will take place during the summer of 2024 and highlight different nocturnal species, ensuring that each event is a unique, educational experience. Registration is required for the August 17 Night Hike

Learn How to Register Below

A green moth on a brown tree trunk. The moth's wings have red accents along the exterior.
A Luna moth is one of the several species of moths that can be found in the park.

NPS Photo

Topics, Details, and Dates

These programs are suitable for all ages, but are most appropriate for adults, older children, and teenagers. Participants are kindly asked to bring flashlights or lanterns, water, and layers. Long pants and closed-toed shoes are required.


Saturday, July 27 — Moths, Bats, and Fireflies at Valley Forge 8:30 PM to 11:30 PM

Are you looking for something to do during National Moth Week? Do you have "mothing" planned on a Saturday night? Join park staff at Wayne's Woods Picnic Area to learn about the life cycles, habitats and benefits of moths, bats, and fireflies! "Moth-ers", bat enthusiasts, and citizen scientists of all ages and abilities are welcome. This is a drop-in event, so feel free to stay a few minutes or a few hours! The event will conclude promptly at 11:30 pm. Registration is not required.

Saturday, August 17 — Nocturnal Hike at Valley Forge 7:30 - 9:30 PM

Join park staff on a special nighttime walk in the park after dark to learn about light pollution and how nocturnal animals have adapted to thrive in darkness. This will be an easy to moderate hike and is best suited for individuals who have some prior hiking experience. Click here for more information on the trails at Valley Forge. Registration is required for this event and space is limited.

Registration Information

Advanced registration is required for the Nocturnal Hike on Saturday, August 17 and space is limited. To begin registration, please send an email to celia_wusteney@partner.nps.gov and include your name and the number of people in your group. Se habla español. Additional information, including specific location information will be provided after registration.

Valley Forge National Historical Park

Last updated: October 10, 2024