2 passes to experience the Discovery Tour at Natural Bridge Caverns, Texas' Largest and most spectacular undrgound attraction.  The Discovery tour takes you 180 feet down, through a half mile of underground roms and passages.  Located between San Antonio and New Braunfels, TX.

Expires March 15, 2015.  Not valud July 4, weekends in July and August, Memorial Day weekend, Labor Day weekend, or Spring Break (March 10-28, 2014).