Start alongside natural lay-by on the A688 northbound single carriageway situated 1/2 mile south of the A181 Durham to Wheatley Hill road and proceed north to the roundabout junction with the A181. Encircle the roundabout and take the 4th exit to rejoin the A688 southbound. Proceed south to the roundabout at Cassop Moor and continue straight on the the B6291 roundabout near to the A1(M) junction 61. Encircle the roundabout and take the third exit onto the A688 northbound and retrace to the starting point (5 miles). Repeat the circuit to finish at the starting point.