Student trapped in cave for 3 days survived by licking water droplets of walls.

A US student, Lukas Cavar, 19 spent almost three days trapped inside a cave after he was left behind on a university field trip.

Cavar was visiting the Sullivan Cave in southern Indiana with the Indiana University Caving Club on Sunday and was separated from the rest of the group who then left without him, locking the gated entrance.

Despite shouting for help, he was not rescued until late on Tuesday night when the president of the Caving Club realised he was missing and returned to the cave.

Sharing the ordeal he says, ""I was very confused and pretty scared.It took me a little while to wrangle my emotions and sort of approach things analytically, sensibly, to come up with a game plan to survive."

The Caving Club said there had been a "failure of leadership".

Incident like these are constant reminders to us to be alert at all times and follow the protocol.

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