WHY NOT EXPLORE SAN ANTONIO'S UNDERGROUND?
At least 2 major caverns are within a short drive from San Antonio in an area honeycombed with limestone caves. The Balcones Fault, stretching along IH 35 between Austin and San Antonio, marks the barrier between rich farmland to the east and rugged limestone hills to the west. Vast networks of open spaces lie beneath these hills. Each cave offers an amazing variety of beautiful speleothems (rock formations), fossils, and history. Two to visit are:
NATURAL BRIDGE CAVERNS, (San Antonio), a vast subterranean maze, takes visitors on a 75 minute guided tour 180 feet below the surface through 1/2 miles of gigantic underground rooms in the North Cavern. Adventurers can make reservations to explore the undeveloped passages of South Cavern. Info and fees, (210 651 6101).
WONDER CAVE, (San Marcos) One of the largest earthquake formed caves in the U.S. A one hour 45 minute guided tour includes the cave, an observation tower, an antigravity house, and a train ride through a wildlife park. Info and fees, (512 392 3760).