Causes: It is caused by yeast called Malassezia, which normally exist in small numbers on the skin. Certain conditions however, can cause the overgrowth of the yeast, causing the development of white and reddish-brown spots on skin.
The 3 men all escaped and made it back to the Britain.   The Great Escape shown in the film happened in March 1944 having been planned first in January 1943. It consisted as per the film of 3 tunnels Tom Dick and Harry, Tom being discovered by the Gestapo.
They dug more shafts, tried to fill in the drain on the beach, built a new dam (which was destroyed by a storm), and drilled for more core samples. They met with little success. The Cave-in Pit. In 1893 a man named Fred Blair along with a group called The Oak Island Treasure Company began their search. Their first task was to investigate the Cave-in Pit. Discovered in 1878 about 350 feet east of the Money Pit, the cave-in pit appears to have been a shaft dug out by the designers of the Money Pit perhaps as a ventilation shaft for the digging of the flood tunnel.