On Saturday, more than 180 people clambered on board for the train’s first trip since the Covid-19 pandemic.
Dunedin Railways general manager Rebekah Jenkins said Saturday’s reopening was a "pretty cool feeling".
"We have a very passionate team who have missed bringing passengers back to Pukerangi.
Trips will run twice-weekly through summer, and Ms Jenkins was expecting a boost to the city’s economy as a result.
"I think we're servicing approximately 80 cruise ships this year, which is fantastic.
Dunedin Railways, which is owned by the Dunedin City Council, was put into hibernation in 2020 when passenger numbers collapsed because of the pandemic.
The company then began operating shorter excursions, including The Inlander to Hindon.
Passenger Alice Cheung said it was "really exciting" to see it back.
"I love the train. I think it's such a novelty and such a cool tourist attraction and also for locals as well, to come out and see part of their local area that they might not have seen before.
Locomotive driver Andy Howie said in the four-year absence, the trip had "lost its brand".
"Some people just don't know we're running, so it's good that we're back up and running and hopefully we can market this place back to what it used to be like."
Ms Jenkins said the work put into reviving the service was "very emotional" for the staff.
"I have seen some tears in people's eyes.
"To bring the train back to Pukerangi after four years, it's really emotional for most of the team."