The Hunts Road tunnel is preserved by the New Zealand Department of Conservation .
The Hunts Road tunnel is can be walked ; the old railway 's formation to the tunnel is quite visible at this point , as it is at many other locations along the line .
The Hunts Road tunnel is preserved by the New Zealand Department of Conservation and can be walked ; the old railway 's formation to the tunnel is quite visible at this point , as it is at many other locations along the line .