The car park is on the left as you drive in. You will need a token (cost £1) to drive out at the end. This can be purchased from the club shop.
The match will take place on (grass) pitch C3 which is down the road from the car park past the main Barnet FC stadium, on past the pitches on your left and beyond the trees. There is a Starbucks en route if anyone needs refreshments.
It is worth double-checking pitch number when you arrive on the details posted on the door of the bar adjacent to the club shop as pitch assignment has changed before.