(a) The course shall be as detailed in the diagram.
(b) The centre of the start line is to be in line with the first turning buoy, but may vary dependent on surf conditions, at the discretion of the Referee.
(c) The finish line for the Double Ski event shall be between two coloured flags corresponding to the buoy colours. The centre of this line is to be relative to the third turning buoy or be offset to allow for the prevailing surf conditions.