Hammerwood is one of those timeless, idillic places (like Bodle St, like Burpham). The ground is small and fast, set high above a quaint little pond, surrounded by farmland. The pavillion is rustic, dark and wonderful.
Directions to the ground:
Go up the A23 into M23 and take Juntion 10 A264 towards East Grinstead. Go straight across the first two roundabouts. After about 2.5 miles you will come to the A22 at Felbridge, turn Right going South towards East Grinstead. After about another mile you will come across some traffic lights and a mini roundabout, keep going until you reach the FireStation where you will need to be in the Left Hand Lane. About 100 yeards turn Left on to the A264 towards Tunbridge Wells (that turn is not well signed, if you get to the Lewes/Eastbourne left turn you have gone to far and will need to circle around and try again!), follow the road for about 3 miles out of East Grinstead until you see a sign for HAMMERWOOD PARK HOUSE, take that right turn into a single track road which meanders past a pond etc before eventually ending up at the Ground on the left hand side.
A map showing the entrance to the ground can be found here.