Explore and tour cave and attractions at Wonder World Park. See the Earthquake Cave and experience the devastations of a major earthquake close up. Exit the cave by an elevator for overview of the “Balcones Fault Escarpment” from the Tejas Tower. Rock out inside the topsy-turvy world of the Anti-Gravity House. Board a train and splash through the waterfalls as the tour travels throughout the Texas Wildlife Petting Park. Located in San Marcos just off Interstate 35.