off the sliproad, take a right (90 degrees) across the centre of the loop style roundabout system. head over the next set of lights. continue to follow the road, you will go past a pub called the romper on the left.
about half a mile down, you will bear left down a hill, and see big tunnels for the airport. take a right hand turn here before the tunnels (unsure of road name).
follow this windy road past 2 farms (both called castle hill/mill farm, just to confuse things) until you drive up a steep section. at the top the road bears right, but you need to turn into the driveway on the left. this leads to castle hill farm which northern quarter is situated at.
