Tonight on the six o'clock news there was a story of a man who went out gold detecting and became lost. Today, five days later he was found alive and in fairly good condition.
This guy had walked away from his car. (not a good idea)
and says he survived by eating termites and other insects. There was no mention in the story about water, thought did say it was a dry desert area; he must have had reasonably good water supply to last five days while walking.