This festival will include displays about limestone geology, bats, and efforts to protect cave and karst resources. Guided, above ground hikes of Skyline Caverns’ Karst Educational Trail also will be offered. Attendees will receive $2 off admission to Skyline Caverns the day of the festival. For more information, contact Janet Tinkham of the Front Royal Grotto of the National Speleological Society at 540-933-6850 firstname.lastname@example.org. Skyline Caverns is at 10334 Stonewall Jackson Hwy. (U.S. Route 340), Front Royal.