The three University of Texas students who were rescued from a shallow cave in Austin, Texas say they're glad they made a plan of action should things go wrong.
Jeff Brown and two women had told their friends to call for help if they didn't return from Airman's Cave near the Barton Creek greenbelt by midnight on Saturday (10/13).
Emergency responders said Sunday (10/14) rescue efforts were hampered by the narrow passages and maze-like conditions.
Throughout the search, rescuers had to crawl on their hands and knees through the long, narrow passages.
Expert explorers equate the cave to a drainage pipe covered with mud and say it's no place for novice spelunkers.
Airman's Cave is 12-thousand feet in length and takes experienced cavers about 12-hours to complete round trip.
A concerned acquaintance of the students contacted authorities by 9-1-1 at 5:00 am (central) Sunday (10/14) morning.