From the M25:

Either take the M20 to J6
Head for A229 Maidstone & Chatham
Climb the hill and head for A229 Chatham & Rochester
Pass under the M2 feeder road and over the M2

Or take the M2 to J3
Head for A229 Chatham & Rochester
Straight ahead at the roundabout (Homebase and Toys R Us on left)
Bear right and then left – follow signs for A230 Chatham
Take right turn into The Ridgeway
Then right into Walderslade Road
Go down the hill and half way up the other side turn left into Wayfield Road
At the mini roundabout turn left onto Churchill Road/Street End Road
Turn left into Third Ave
At the T-junction turn left along Second Ave
Maltbury Staging is about 200m on the right