After landing back in Auckland, Embarked on the Waterview, Tunnel Walk, kindly hosted by the NZTA. Could walk about 900m in via the Northnound tunnel then crossing over to the southbound tunnel to walk back. (Though have to admit, was thinking we could walk straight through to the other end)
Beware, Fixed Speed cameras at each end and variable speed limit up to a Maximum of 80km/h.