DESCRIPTION OF THE EXERCISE: The dog must cross a line (20m long), parallel to the starting line, marked by 2 outside markers placed at each end. At 5 meters inside the outside markers, there will be 2 perpendicular lines 1 meter in length to indicate the optimum zone. The markers can be decorative objects (that are part of the theme.) The distances are 20, 30, and 40 m respectively in Level I, II and III. The path should be free from any obstacle or object and in accordance with the orthogonal axes. Avoid using markers that could be regarded as provocation and likely to attract the dog (example: balls/toys).