You cannot walk out of the berth
Lyttelton is a customs port, so even the town on your doorstep is shuttle-only. A free shuttle runs on demand from the cruise berth to Norwich Quay in Lyttelton itself. The paid shuttle to the city is organised and priced by the cruise lines, not the port, so the fare is something to ask about on board. It drops at the Bridge of Remembrance on Cashel Street, where volunteers in blue vests answer questions.
The city's own visitor site steers cruise passengers straight to Christchurch rather than lingering in Lyttelton, and says the public buses mainly serve residents. They do work, though: from Norwich Quay, route 8 runs to the city, the Antarctic Centre and the airport. As listed for the 2026-27 season, an adult fare is NZ$4 with a free transfer within two hours, and contactless cards are accepted.
The ten-minute ferry most people miss
If Lyttelton is enough for the day, the Diamond Harbour ferry crosses the harbour in about 10 minutes and takes cash or contactless. Reach it over the Norwich Quay overbridge. On the far side are cafes and walking tracks.
Tram yes, gondola by excursion
In the city, the heritage tram sells all-day hop-on hop-off tickets on board across 18 stops, which covers most of the central sights from the Cashel Street drop-off. The gondola is the awkward one - the city's cruise guidance points passengers to pre-booked shore excursions that leave from the berth.
Sources: lytteltoninfocentre.nz, christchurchnz.com