LAUREL LOCKS FARM: Meet Bob McGinnis, 610-945-5490, fora hike around this interesting and wide ranging farm and historic site. Directions: From Exton, take Route 100 north towards Pottstown (continue pass Route 23) to the exit for Route 724 west. Make a left onto Route 724 and continue past Coventry Mall for a mile. Laurel Locks is on your right as you drive along tree lined 724. Take a right at the barn and follow the driveway on the right to the back of the property. Bring snack and water. After the hike, if you want, you can eat lunch at the ice cream shop and restaurant (adjacent to the property).