A man is on the east side of an island. Wind is blowing from the west side to the east. There is a fire on the west end that is being pushed by the wind toward the man, igniting everything in its path. The fire stretches from north to south and is slowly approaching the man. He cannot go near the water, for he the island is about twenty feet above the island and there are sharks in the water. Also, he cannot dig a hole in the hard surface of the island. How does he survive without being burned to death by the incoming fire?