start on a49 50yards north of prees bridge barrier and grid marked nsw 25s proceed north to prees island 2.725 2.725 take 2nd exit along a41 to ternhill island 7.021 9.746 take 1st exit on to a53 and continue via mullers island to market drayton island 2.949 12.695 encircle island and retrace to ternhill island 3.050 15.745 take 3rd exit and retrace along a41 to prees island 6.945 22.720 take 1st exit along a49 to finish at yellow paint mark showing 25 finish 100yds short of by-pass start 2.280 25.000