13th Annual Smithsonian Magazine Photo Contest Natural World

These swimmers are standing at the mouth of Jacob's Well, a 5000-foot long series of cave passageways located outside of Wimberley, TX.

Photo Detail
Date Taken: 08.2015
Date Uploaded: 11.2015
Photo Location: Wimberley, Texas, United States of America
Camera: COOLPIX AW100
Copyright: © Susan Hanson