New Zealand is a beautiful country with many scenic train trips. Some of the popular scenic train trips in New Zealand include:

  1. Northern Explorer: This is a 12-hour train trip between New Zealand’s biggest city, Auckland, and its capital, Wellington, in the North Island. The train service is a scenic rail journey through the five unique geographical regions of the North Island – travelling through the central heartland of the North Island to Wellington – New Zealand’s harbour capital and arts and culture centre.
  2. Coastal Pacific : The Coastal Pacific train travels between Picton & Christchurch in the South Island. It’s a dramatic tour of New Zealand’s coastline between the Pacific Ocean and the breath-taking Kaikoura ranges. 
  3. Tranzalpine : The TranzAlpine train journey is one of the world’s great train journeys, travelling between Christchurch and Greymouth. The journey is approximately 223.8 km long and takes about 4.5 hours. The train crosses the Southern Alps through Arthur’s Pass National Park, from the east coast to the west coast of New Zealand’s South Island .
This is the video of TranzApline Train between Christchurch and Greymouth.
This is the video of Coastal Pacific Train between Picton and Christchurch
This is the video of Northern Explorer Train which operate between Auckland and Wellington.