Mokai, Taupō: Rural Area Guide to Geothermal Country and Marae Life

Last updated October 2026

Mokai (Māori: Mōkai) is a rural locality in the Taupō District, northwest of Taupō, where farms, a marae and a working geothermal field share the same country roads. It is not a township. Forest Road, also given as Tirohanga Road in the marae address, is the way in from State Highway 1 near Ātiamuri.

Mōkai Marae and its meeting house, Pakake Taiari, are a gathering place for hapū of Ngāti Raukawa and Ngāti Tūwharetoa. The Mōkai geothermal field is used for electricity, heated glasshouses and milk processing, not as a public thermal park.

A private timber railway once ended at a sawmill village here, and that industrial past still explains why a small rural locality carries such a large energy footprint.

Official Locality Facts

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About Mokai

Mokai is open farming country on the northwestern side of the Taupō District, in the Waikato region. Houses and work sites are scattered rather than gathered around a main street.

The roads are rural, and much of what you pass is private land: paddocks, shelter belts, and the pipes, wells and buildings of the geothermal industry. People who live here are close to Taupō for larger services, but day-to-day life is that of a small rural community, not a lakeside suburb.

Mōkai Marae stands just off Tirohanga Road. Māori Maps records its principal hapū as Ngāti Hā, Ngāti Moekino, Ngāti Parekaawa, Ngāti Tarakaiahi, Ngāti Te Kohera and Ngāti Wairangi, of the iwi Ngāti Raukawa and Ngāti Tūwharetoa.

The wharenui is Pakake Taiari, named for an ancestral chief, and the wharekai is Parehingaawatea, named for his wife. The marae connects ancestrally to the Te Arawa and Tainui waka, the maunga Tongariro and the awa Waikato. It is a living community place, not a visitor attraction to enter uninvited.

The geothermal field under this country is hot and heavily developed, but it does not look like the sinter terraces visitors see at managed thermal parks. The New Zealand Geothermal Association describes only small areas of steam-heated ground, mud pools and, at Paerata Road, a mud geyser.

Geothermal kānuka grows around features at Waipapa, Tirohanga Road and Paerata Road, and the rare thermal fern Christella aff. dentata is present. Māori have traditionally bathed in the outflow of the Tirohanga Road features. That history does not make the ground a public pool.

For anyone thinking of living here, or of driving through, the practical picture is simple. There is no town centre, no strip of cafés and no confirmed school inside the locality itself.

Work is tied to farms and to the geothermal resource: power generation, temperature-controlled horticulture and milk processing that uses geothermal heat. The roads are public. The marae, the power station and the well pads are not places to wander into.

History and Heritage

Before geothermal power, Mokai was a sawmill village. The Taupo Totara Timber Company built a private railway from the government line at Putāruru to its stands of timber and its mills at Mokai. Te Ara records that line and an early photograph of stacked timber ready for the wagons.

The railway history gives an official opening on 4 November 1905. From 1908 the company carried public passengers, freight and mail, and a siding near Mokai was a set-down point for people heading on by road toward Wairakei and Taupō.

The line was a working bush railway, not a scenic route that survives for visitors. Heisler geared locomotives worked the harder country into Mokai, and bush tramways brought logs in from the forest. In late 1944 the company moved to road transport.

Dismantling of the southern section, from the 19-mile peg through to Mokai, began on 26 October 1944. The mill village faded with the rails. What remains in the landscape is the rural locality, not a preserved station or a walkable tramway.

Geoscience and drilling in the 1980s showed that the field beneath this old mill country was unusually hot. That work led to the power station and to later direct-heat uses.

The timber era and the geothermal era are the two chapters that define Mokai: first a private railway terminus in the bush, then a Māori-owned energy landscape on the same ground.

The Geothermal Field

The New Zealand Geothermal Association places the Mokai geothermal system in the Waikato region, north of Taupō, over about 12 to 16 square kilometres. The Waikato Regional Plan classes it as a Development Geothermal System: large-scale take and use are allowed, with requirements to remedy or mitigate effects on significant geothermal features and on other resources.

The field has few vigorous sinter-depositing surface outflows. Downhole temperatures of up to 326°C have been recorded, among the hottest geothermal wells in New Zealand. Permeable zones are commonly in ignimbrite and fractured lava, with deep basement faults thought to control the upflow.

Mōkai Geothermal Power Station sits on this field. Mercury, a part-owner, records that it opened in 2000 as a 55 MW station, that 38 MW was added in 2005, and that a further 20 MW followed in 2008.

Installed capacity is 113 MW, with average annual output of 930 GWh. It is a combined-cycle plant with binary turbines and steam turbines, jointly owned by the Tūaropaki Trust (75 percent) and Mercury (25 percent). Reinjection is part of how the field is managed. The station is an operating industrial site, not a public viewing area.

Heat from the field is also used directly. An 11 hectare glasshouse complex takes geothermal heat from a dedicated well, and the Miraka dairy factory, supplied with geothermal heat, was commissioned in August 2011. A plant nursery is part of the same cluster of uses.

Together these sites show how Tūaropaki has used the resource for electricity, horticulture and milk powder, rather than for tourism. Surface features at Tirohanga Road, Paerata Road and Waipapa Stream can include heated ground and mud pools. Stay on the public road. Do not walk onto steaming ground, and do not treat any outflow as a swimming hole.

Getting Around

Mokai is a drive-in locality. Forest Road, identified in the marae address as Tirohanga Road, links the community toward State Highway 1 near Ātiamuri. There is no passenger train, and the timber railway has been gone since the 1940s.

No local bus service was confirmed in official sources, so plan on a private vehicle and carry what you need for the trip.

There is no shopping centre in the locality. Groceries, fuel and other services are in larger centres such as Taupō. If you are only passing through, the public experience is the rural road itself: farms, shelter belts, and glimpses of geothermal infrastructure.

Mōkai Marae welcomes people for hui and tangihanga under its own tikanga. It is not a drop-in stop. The power station, glasshouses and dairy plant are workplaces. Photograph from the roadside if you must, and do not enter gates or well sites.

Where to Learn More

Frequently Asked Questions

Is Mokai part of Taupō?
Mokai is a rural locality in the Taupō District, northwest of the town of Taupō. It is farming and geothermal country, not a residential suburb of the town.

How do I get to Mokai?
Drive in on Forest Road, also referred to as Tirohanga Road, from State Highway 1 near Ātiamuri. There is no passenger rail or ferry, and no local bus service was confirmed.

Can I visit Mōkai Marae?
The marae is a community place for hapū of Ngāti Raukawa and Ngāti Tūwharetoa. Do not arrive uninvited. Contact the marae if you have a genuine reason to visit, and follow tikanga.

Are there geysers or hot pools I can swim in?
No. The field has small areas of heated ground, mud pools and a mud geyser, not a managed tourist park. Traditional bathing in Tirohanga Road outflows is recorded, but the ground is hazardous. Stay on the public road.

Can I tour the geothermal power station?
No public tour was identified. Mōkai Geothermal Power Station is an operating industrial site, jointly owned by the Tūaropaki Trust and Mercury. View it only from public roads and do not enter the site.

Was there really a railway at Mokai?
Yes. The Taupo Totara Timber Company ran a private railway from Putāruru to its Mokai sawmill. The line opened in 1905. The section through to Mokai was dismantled after the company switched to road transport in 1944. It is not a heritage ride today.

Are there shops or a school in Mokai?
No shopping centre was identified in the locality. The nearest named state primary is Tirohanga School, on Tirohanga Road near Ātiamuri, which serves the wider rural area rather than sitting in a Mokai village centre. Secondary schooling and everyday shopping are in larger towns.

Which iwi are connected with Mōkai Marae?
Māori Maps names Ngāti Raukawa and Ngāti Tūwharetoa, through the hapū Ngāti Hā, Ngāti Moekino, Ngāti Parekaawa, Ngāti Tarakaiahi, Ngāti Te Kohera and Ngāti Wairangi. The marae links to the Te Arawa and Tainui waka.

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Explore Taupō only lists suburbs officially recognised by Land Information New Zealand (LINZ), and Mokai is one of them. Suburb boundary: LINZ, CC BY 4.0.