The Horniman Nature Trail is the oldest in London. It is roughly half a mile long on the site of the original Crystal Palace and South London Junction Railway. The railway was closed in 1954 and the area was left unmanaged until 1972. This resulted in it becoming a wild woodland area.
Today, the trail is managed carefully to encourage a wide variety of plants, birds, insects and other animals which depend on each other for survival. Pond and meadow habitats have been introduced to attract new species, and a log pile area is home to dozens of different mini beasts, including the endangered stag beetle.