 The section between Cox's Walk footbridge and northern entrance to the Crescent Wood tunnel is managed by the London Wildlife Trust as the Sydenham Hill Wood nature reserve.Two tunnel entrances remain at Hillcrest Wood and are known hibernation roosts for the Brown long-eared bat.In the early 1990s, a local amenity group, Friends of the Great North Wood, produced a walking leaflet entitled "From the Nun's Head to the Screaming Alice" describing a route that closely follows the line.