In the north of the netherlands that was liberated by the canadians there is a story that there must be a tank that is sunk in the moor ground overthere. Canadian soldiers were trading petrol against gin. They brought the petrol to a farm with a tank but it slid from a narrow road and started sinking. There are people there they a sure the tank is still there at a depth of 5 meters. Only proof are some pictures of the sinking tank. This is one of the pictures, i think it is the the second tank on the picture that is at an bad angle. The other seems sinking too. Only thing there is no evidance in the canadian archives of a missing tank. But the people in the north are testing the ground with a radar to proof that the tank still is there...