For everyone who doesn't know J25 of the M25 is closed off when going in the stansted direction so follow it to J24 for potters bar then....

-Take A1005 to Enfield town
-Go over the roundabout just before a Shell petrol station
-Turn Left at the roundabout at the end of this road
-Go straight through the highstreet
-Then straight again don't curve round by train station

-Keep going until you see a huge cinema on your Left and turn left there onto the A10
-At the next set of lights take the little slip to turn right and you're there

Hope i ain't confused anyone