In almost perennial rainy weather, with heavy bar fetters and shackles on their feet, surrounded by snakes, leeches and scorpions the freedom fighters were expected, in deep primeval forests to clear a path for roads through marshy land. They were punished and faced hard labour if they slowed down. In March 1868, 238 prisoners tried to escape. By April they were all caught. One committed suicide and of the remainder Supdt. Walker ordered 87 to be hanged.