 Some of the pillars for the second tunnel approaches are visible in the Clifton Terrace carpark adjacent to the cable car line, as is some of the approach road which currently forms part of the upper deck of the Clifton Terrace carpark.These pillars may also be seen on the left hand (eastern) side of "The Terrace Looking South" webcam on the CityLink website.As you enter the tunnel it is impossible to see the other end, as it curves in the middle.