Escape from Port Arthur was said to be impossible, like Alcatraz Island in the United States. Some prisoners did try to escape. One prisoner, George "Billy" Hunt, covered himself with a kangaroo skin and tried to get across the Neck. The hungry guards on duty tried to shoot him to make an extra meal. When he saw them pointing their guns, Hunt gave himself up. He was whipped 150 times. Bushranger Martin Cash successfully escaped along with two others.