From the 9^th of March until the first of April 2001 a light projection was shown on an 8-meter high screen at the Vondelpark in Amsterdam.  At the edge of a large pool you could see a green image of the park at night, resembling something seen through night-vision goggles: so that details that normally cannot be seen become visible. On and between the trees you can see all kinds of shadows.  Mysterious dark spots eventually resolve themselves into a shadow play. Finally you can see what caused these shadows: a deer trying to find his way through the trees.