START At the forward most rain water drain in layby on B1043 just south of the B660 junction and Woolpack Farm.
Proceed Southwards on B1043 to Sawtry North Roundabout (1.4 miles) where
Straight on 1st exit to St Andrews Way Roundabout (1.8 miles) where
Straight on 1st exit to Sawtry Interchange Roundabout (2.2 miles) where
Straight on 1st exit to Tollbar Way Roundabout (3.0 miles) where
TURN 4th exit to retrace North, straight on over the 3 previous roundabouts, past the start on the other side of the road, to Stilton Roundabout ( 8.5 miles) where
TURN to return south on the B1043 past the start (11.0 miles) to commence a 2nd lap
Lap 2
Continue south until the southern turn at Tollbar Way Roundabout (14.0 miles) retrace north to the Stilton roundabout turn (19.5 miles) then retrace south (past the start a second time) to Tollbar Way Roundabout (24.9 miles)
TURN LEFT 1st exit onto B1090 and
FINISH opposite the dropped kerb. (25.0 miles).