Friston ForestFriston Forest is a forest, located between Seaford and Eastbourne in East Sussex. It is part of the South Downs National Park area. The forest is managed by Forestry England and covers an area of 2.79 square kilometres, or 278.73 ha.HistoryFriston Forest was planted in the 1930–40s by the Forestry Commission. The most common species of tree planted was beech, because of the chalk and limestone soil.