Sandilands Tunnel is located a short distance from Sandilands tram stop in the London Borough of Croydon and is the collective name for three contiguous ex-railway tunnels, routed under the Addington Hills. The three tunnels consist of the Radcliffe Road (Woodside) tunnel which is 243 metres long (266 yards), Park Hill tunnel which is 112 metres long (122 yards) and Coombe Lane tunnel which is 144 metres long (157 yards). The three tunnels are the only tunnels on the Croydon Tramway Network and can be found at Park Hill Tunnel (Croydon) OS Grid Ref TQ337651 (South portal) & TQ340656 (North portal)