Well how many of us would have attempted (or have attempted) these types of outings and then been able to keep cool (in 50°C heat!) enough to get out of an unpleasnt situation.
"Stranded Briton saved after writing SOS in sand
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A British tourist, stranded on a remote Australian beach in scorching heat for nearly three days, was rescued yesterday after scrawling a huge SOS message into the sand.
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He endured heat of up to 50C (122F) and was running short of water. He even considered walking 52 miles to Broome, but spotted crocodile tracks and decided against it.
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Mr Holdsworth said: "During the day I kept myself in the shade … using as little energy as possible, and I worked through the night trying to get the vehicle out.
“I must have shifted tons of sand, absolutely tons, Jesus!”
Mr Holdsworth shuffled his feet in the wet sand to create the SOS below the high-tide line, to indicate it had been written recently. “In fact, that’s what saved me, because that’s exactly what the Coastwatch people noticed,” he said.
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http://news.independent.co.uk/world/australasia/story.jsp?story=472814