Kelly Rypkema, Mercer County Naturalist, will lead this beaver walk in Roebling Park. This night-time hike will include a search for beavers and other wildlife that come out only after dark. Donations will be accepted. This event is kid-friendly, but everyone is invited. Under-age children must be accompanied by a parent or guardian.

Registration required, please RSVP to natureprograms@mercercounty.org or call 609-888-3218. Bring a flashlight and wear sneakers. Take South Broad St. to Sewell Ave., at traffic light turn onto Sewell Ave.; at the end of Sewell, turn left and drive down hill to parking lot.

Sponsored by Abbott Marshlands, Washington Crossing Audubon Society, Mercer County Park Commission, and D&R Greenway Land Trust.