From Billericay take the A129 towards Brentwood. At the second mini-roundabout turn left into Hanging Hill Lane which becomes Running Waters.
At the end of Running Waters turn right at first mini-roundabout (this is the A128) and left at second mini-roundabout close by into The Avenue.
After the long straight of The Avenue slow down as you need to turn sharp left into the Park through Lion Gates.
The Visitor Centre (Countryside Centre) Car Park is about 300 yards on the right. If this is full there is another further on. Pay and Display is £2. Meet outside the Countryside Centre.