5-6 miles. Meet at 10:30 AM in the parking lot (40.329468, -74.676362) of the Clark House, Princeton Battlefield, 500 Mercer Road (Princeton Pike- Rte. 583). Hike through the woods at the Institute for Advanced Study. Over 500 acres of forest, farmland, and wetlands have been conserved. Trails may be muddy. Those using public transportation (NJ Transit from Philadelphia) must call by Friday evening. Bring lunch and water. Cost: $1.00. Leaders: Heidi Setz-Kelly and Peter Kelly, 609-442-5830, setzkell@mac.com.