Wellington is the home of the NZ beer revolution and for a capital city is very compact, probably due to the surrounding hills. It has an electrified suburban rail network and a funicular – the Wellington Cable Car – leading up to the suburb of Kelburn and the botanic gardens. There are still, I think, some peak time loco hauled services on the suburban network to outlying towns. From Wellington the Northern Explorer runs to Auckland 3 times a week, it’s an 11 hour journey but you do at least have the opportunity to stretch your legs a bit during the journey. It now arrives into Auckland Strand station rather than the main Britomart station as it did during my visit.
Auckland has a modern electrified suburban rail network and is being extended with a city centre tunnel under construction to make Britomart a through station. You don’t need to walk far in the city centre to find these works!