New Zealand

By the close of the twenty-first century, the map of tourism in Aotearoa New Zealand will still read at a glance — two main islands, three UNESCO World Heritage properties, the Great Walks network, an Antarctic gateway and a constellation of marine reserves — but almost every line on it will have been redrawn by warming, sea-level rise, the gain and loss of species, Treaty-settlement governance, and the pervasive mediation of artificial intelligence. The physical product will be unrecognisable in detail yet largely intact in character, and the country's comparative advantage over Australia and the tropical Pacific, which will be coping with bleached reefs and stressed coastlines of their own, will arguably be greater in 2100 than it is today.

The climate forcing most plausibly settles between the SSP2-4.5 and SSP3-7.0 pathways, implying a New Zealand-wide warming of roughly two to just under three degrees Celsius above the late-twentieth-century baseline. The texture of this warming matters more than the headline number. Summers on the east coast become drier, west-coast winters wetter, frosts rarer, and extreme rainfall events of the kind that devastated Hawke's Bay in 2023 routinely more common. The alpine snowline rises by several hundred metres across the south, and the Southern Alps lose roughly half of their annual snow cover days on a high-emissions trajectory. None of this is reversible on any plausible policy timetable, and the tourism industry's adaptation curve runs through almost every sub-sector.

Coastal infrastructure faces the most immediate operational pressure. Global mean sea-level rise to 2100 is most likely around half a metre on a Paris-compatible pathway, but in much of New Zealand the rate is effectively doubled by vertical land motion: parts of Wellington's coastline, Christchurch's eastern suburbs, South Dunedin and the South Westland coast are subsiding at three to four millimetres a year, and roughly a metre of relative rise is therefore the working planning assumption for Auckland's Waitematā and Manukau harbours, the Wellington waterfront and much of the eastern South Island. Napier's Art Deco quarter, the Picton ferry terminal, Tauranga's cruise berths, Akaroa, central Auckland, Petone and most Bay of Islands jetties either require extensive defences or staged retreat well before century's end. The Hauraki Gulf's Waiheke ferry infrastructure, the Coromandel's beachfront accommodation and the cluster of West Coast lagoon settlements that anchor adventure tourism all sit in the same high-risk band.

The glaciers, for so long the signature image of New Zealand's South Island product, effectively end as a mass attraction. Franz Josef is projected to retreat several kilometres and lose between roughly forty and sixty per cent of its mass under mid- to high-range scenarios, extending a trend that already shrank the ice fifteen hundred metres between 2008 and 2017 and dropped its surface elevation seventy metres in a single year. Haupapa/Tasman, the country's longest glacier, is in an accelerating retreat phase measured in hundreds of metres per year and will not survive in any tourism-relevant form. The walk-up tourism that built the Franz Josef and Fox townships becomes a memory; commercial alpine guiding around Aoraki/Mount Cook transforms into a higher-altitude, helicopter-dependent, shorter-season operation centred on glacier lakes, alpine huts and day-walk circuits such as Hooker Valley. The ski industry follows a parallel logic. The North Island's commercial fields close progressively across the 2030s and 2040s, while Coronet Peak, Cardrona, Treble Cone and the club fields survive only on their upper terrain, with extensive snowmaking and shortened July–August seasons, and increasingly resemble integrated year-round alpine-experience companies rather than ski companies in the traditional sense.

Marine warming reshapes the cetacean-tourism map in a similar fashion. The suitable habitat for blue and sperm whales shifts southward, and Kaikōura — long anchored on a near-guaranteed sperm whale encounter — is repositioned as a multi-species, probabilistic offering with sightings concentrated through the southern winter. Operations expand in Foveaux Strait, around the Otago Peninsula, Rakiura/Stewart Island and the Sub-Antarctic Islands; orca, humpback and pilot whale become the headline products at lower latitudes; and Hector's and Māui dolphin populations remain stable only where marine sanctuary expansion and on-board-camera enforcement of bycatch rules genuinely hold. Marine heatwaves, forecast operationally rather than retrospectively, become a routine operating variable. Set against this, the Sub-Antarctic Islands — Auckland, Campbell, Antipodes, Bounty and Snares — emerge as one of New Zealand's strongest tourism stories: predator eradications completed across the chain through the 2020s and 2030s allow extraordinary seabird and pinniped recovery, and southward range shifts make the islands biologically richer rather than poorer.

The deepest structural change, though, is not physical but constitutional. The legal-personhood model established for Te Urewera in 2014, for Te Awa Tupua in 2017 and for Taranaki Maunga in 2025 is best read not as a curiosity but as a template that, by 2100, applies to virtually every major ecosystem on the conservation estate. Fiordland, Aoraki/Mount Cook, Tongariro and the Hauraki Gulf marine area are most likely governed under comparable arrangements with their respective iwi, and the concession base for tourism is reformed accordingly. Ngāi Tahu Tourism, already the South Island prototype with around half a million annual customers across jet boats, glacier guiding, the National Kiwi Hatchery, the Dark Sky Project and other ventures, is joined by equivalent enterprises scaled up across Whakatōhea, Tūhoe, Ngāti Porou, Ngāti Whātua, Ngāpuhi and Taranaki iwi. The share of tourism value captured by iwi enterprises grows substantially above the roughly fifteen per cent estimated for iwi-led ventures today, and Māori cultural tourism — anchored by a te reo Māori spoken at conversational level by a meaningfully larger share of the resident population — becomes a central rather than peripheral product.

Artificial intelligence runs through all of this as both stabiliser and wrecking ball. On the positive side, predator detection at landscape scale, biosecurity surveillance at airports, ports and along Te Araroa, climate-resilient species distribution modelling for kiwi, kākāpō and takahē reintroductions, carbon accounting for operators, dynamic visitor dispersal away from over-loved sites and dynamic pricing on huts and Great Walks deliver real reductions in per-visitor footprint. High-fidelity virtual access opens fragile environments — the Sub-Antarctics, the Kermadecs, predator-free islands — to disabled visitors and to those whose physical presence would itself be the problem. Iwi-controlled digital twins of marae and wāhi tapu enable cultural participation without physical pressure on the original sites. Against these gains, AI displaces guides, drivers, hospitality and front-of-house workers, with concentrated impacts on West Coast, Mackenzie and Northland communities; offshore platforms extract a rising share of margin from small operators unless platform-fairness rules are robust; AI-enabled mass marketing produces demand surges that strain even strict permit systems at Piopiotahi, the Tongariro Alpine Crossing and Aoraki; and the generation of "Māori" cultural content without iwi consent becomes a credible deepfake and appropriation risk that is technically containable only with default-deny licensing regimes and active enforcement.

Set the gains and losses against each other and a coherent 2100 picture emerges. The tourism sector is smaller in volume than the late-2020s peak but higher in yield and more evenly balanced between international and domestic spending, with the domestic share rising from around sixty per cent of expenditure toward seventy per cent or more. The International Visitor Conservation and Tourism Levy, tripled to one hundred New Zealand dollars in 2024 without appreciable damage to demand, sits at several multiples of that figure in real terms, hypothecated to coastal retreat, climate-resilient rerouting of the Great Walks, biosecurity and iwi co-governance capacity. The losers are coastal mass-market operators, the snow-sports industry below roughly eighteen hundred metres, the cruise sector outside a capped and electrified core, glacier walk-up guiding, and small operators unable to access platform algorithms. The winners are iwi enterprises, high-altitude and southern operators, Sub-Antarctic and Antarctic gateway products, dark-sky and marine wildlife operators, and AI-mediated cultural and conservation experiences delivered under genuine indigenous governance.

The 2100 product is, on most metrics that matter — emissions per visitor, biodiversity outcome per dollar of spend, indigenous share of value — genuinely more sustainable than the one that exists today. It is less sustainable on others: cultural integrity is under greater pressure, employment per visitor is lower, and the digital exposure of fragile cultural assets is much greater. Whether the balance tips toward "sustainable tourism" as the term was understood at the start of the century depends less on the physical climate, which is now largely baked in, than on choices about platform regulation, AI governance, the pace at which Treaty-settlement co-governance is extended, and the social licence granted to the most contested conservation technologies. The country has, on present trajectory, the institutional ingredients for a credibly sustainable tourism economy in 2100. It does not yet have a guarantee that it will assemble them.