Naturalist Robin Tracey of Tuscarora State Park, Barnesville, Schuylkill County, will lead a 4-mile hike at the Landingville Marsh on Wednesday, March 20.

Participants will hike around the marsh looking for critters in the marsh and vernal pools.

Meet at the Advanced Auto Parts store in the Cressona Mall parking lot to carpool to the site at 10:30 a.m. The hike starts at 11 a.m.

Dogs are welcome, but must be leashed and get along with other pets and people. Contact Tracey at 570-467-2506 to register.