The Archaeological Park at Flag Fen was first laid out in 1987. Since then it has been progressively enlarged and now covers almost the entire length of the post alignment. The Park is managed in an archaeologically-friendly manner: efforts are made to retain a high water table and the grounds have been landscaped with native trees and shrubs that were growing in the area in the Bronze Age. The Park is becoming an important wildlife refuge and provides a 'corridor' linking the tree-belts of the Peterborough ring-road system with the Nene Washes and the countryside around Whittlesey
Plan of Park at Flag Fen

The Mere at Flag Fen is a shallow artificial lake that was constructed to preserve waterlogged conditions across part of the buried Bronze Age timber platform and post alignment. The timbers are beneath peaty ground and were driven into a layer of clay which lies under the peat at a depth of about 1.5 metres. The water for the Mere is pumped in from the nearby Mustdyke and any pollution or impurities are removed by the plants.