Auckland

For the view, yes — at 328 metres it is the tallest tower in the southern hemisphere, and the observation deck genuinely does see across the Hauraki Gulf to the islands and back across the city to the west-coast surf beaches. Adult admission is around NZ$35 for the observation deck. The thrill add-ons are where it gets interesting: SkyWalk is a guided harness walk on the outside of the pergola at 192 metres (around NZ$165); SkyJump is a controlled base-jump-style descent on a wire (around NZ$285). The base of the tower is a casino complex, which is not the most charming setting, but the lifts to the top are quick and the view is the view. Skip on a low-cloud day; it's all white.

Yes — and it is the easiest half-day in the New Zealand cruise circuit. The Devonport ferry leaves from Pier 1 at the Downtown Ferry Terminal, the next pier east of Queens Wharf. The crossing is 12 minutes, ferries run every 15–30 minutes, and a return adult fare is around NZ$8.40 with an AT HOP card or NZ$9.50 cash. On the Devonport side you walk straight into a Victorian seaside village; the climbs up Mount Victoria (a small volcanic cone, 196 steps and a path) and North Head (old coastal-defence tunnels you can wander through for free) both give you the best view back at downtown Auckland and your ship. Allow three hours minimum — half a day is better.

Yes, with discipline. The Fullers360 ferry to Matiatia Bay on Waiheke takes 40 minutes from the Downtown Ferry Terminal and runs roughly hourly; an adult return is around NZ$60. From Matiatia, an Auckland Transport bus or a hop-on/hop-off wine tour gets you to the cellar doors. Realistic plan: catch the 9:30 or 10:00 am ferry, do two or three wineries (Mudbrick and Cable Bay are the postcards, Stonyridge and Te Whau are the cult names), be back at Matiatia by 4:00 pm, on the 4:00 or 4:30 ferry, and on the ship by 5:30. If your all-aboard is earlier than 6:00 pm, a private guided wine tour booked through the cruise line is safer than going independent — Waiheke ferries do get cancelled in rough weather.

If you have any interest in Maori and Pacific cultures, yes — it is one of the best museums in the southern hemisphere on the subject. The Maori and Pacific galleries on the ground floor are the headline; the natural history wing has the Hotunui meeting house and a 25-metre waka taua (war canoe). The top floor is a sober memorial to New Zealand's two world wars and is more affecting than tourists expect. The museum sits in the Auckland Domain, a 30-minute walk uphill from the pier or a short ride on the City Link bus. General admission for international visitors is around NZ$32. The Maori cultural performance (extra ticket) is a respectful, non-cheesy 30-minute show.

Cards are fine almost everywhere. New Zealand is one of the most cashless countries on the cruise circuit and Auckland leads the country — contactless tap is the default in cafes, restaurants, the Sky Tower, the museum, the ferries, and most taxis. The exception worth knowing is the Auckland Transport HOP card system: if you plan to use multiple ferries or buses in a day (Devonport plus a city bus, say), buy a NZ$5 reloadable AT HOP card at any AT customer service centre or 7-Eleven and load it — fares come out roughly 25% cheaper than cash. The currency is the New Zealand dollar (NZD).

Mild, humid, and changeable — Aucklanders call it four seasons in one day and they are not joking. The cruise season runs roughly October through April; summer highs (December to February) are 22–26°C, shoulder months are cooler and wetter. The city is subtropical and the showers come through fast, often with sun on either side. Layer for the wind on a ferry deck, bring something water-resistant for the Devonport or Waiheke crossing, and assume sunscreen is needed even when it's overcast — New Zealand's UV index is brutal because of the thin ozone layer over the southern latitudes.