Auckland rail commuters will be able use the Onehunga branch line for the first time in 37 years, as celebrations are held on Saturday morning to mark the line's re-opening.
The line was the first to run in Auckland in 1873, connecting Onehunga to the central city. It was closed to passenger services a century later.
The Auckland Regional Transport Authority has developed three new stations at Onehunga, Te Papapa and Penrose, as part of the $3.6 million upgrade of the line.
A spokesperson said the re-opening will coincide with a local heritage festival and a steam train would be used to mark the first trip.