Knockhatch Adventure Park is located in Hailsham. Set in 80 acres of countryside, just north of Eastbourne, East Sussex, Knockhatch Adventure Park is a major tourist attraction, with a whole host of different outdoor and indoor activities. The park can also cater for special events & parties. Celebrate a special occasion here at Knockhatch Adventure Park. Believe it or not, it can be possible to throw a kids birthday party without all the stress. We know children can be very hard to please, especially when you have got quite a few of them in the same room. Celebrate your special occasion at Knockhatch Adventure Park.