Haywards Heath Tunnel
Coordinates: 50°58′55″N 0°05′24″W / 50.982°N 0.090°W
Southern portal of Haywards Heath tunnel
Haywards Heath tunnel (also known as Folly Hill tunnel) is a railway tunnel on the Brighton Main Line between Haywards Heath and Wivelsfield. It is 249 yards (227 metres) long, one of the shortest tunnels on the line.