Last updated October 2026
The Tongariro River does not simply flow into Lake Taupō: it is still building land there. Sediment carried down from the mountains has made the Tongariro River delta, at the southern end of the lake near Tūrangi, into what the Department of Conservation calls “a wonderland of wet and swampy areas”.
The delta forms part of Te Mātāpuna / South Taupō Wetland, which stretches along the shore from Motuoapa round to Waihi. It is a place for birdwatching and paddling rather than walking: DOC suggests a kayak or boat to explore its quieter channels and lagoons. The wetland lies about 33 to 38 km from Taupō in a straight line.
Practical Information
- Location
- Southern end of Lake Taupō, near Tūrangi and Tokaanu Bay
- Distance from the city
- About 33 to 38 km from Taupō in a straight line; Tūrangi is the nearest town
- Size
- South Taupō Wetland covers about 1,500 hectares (Project Tongariro)
- Access points
- Tokaanu tailrace boat ramp (boats and kayaks); Tongariro River bridge off State Highway 1 (kayaks)
- Things to do
- Kayaking, boating and birdwatching
- Managed by
- Department of Conservation
- Status
- Department of Conservation: Tongariro River delta page
About the Tongariro River Delta
Seen from the water, the delta is a maze of channels, lagoons and low swampy ground. DOC describes two broad plant zones. On the drier ground beside the river grow kānuka, mānuka, kōwhai and horoeka (lancewood). Further from the river, where the ground drains less well, the cover changes to harakeke (flax), toetoe, raupō, oioi, rushes and sedges.
Birdlife is plentiful. DOC records at least 48 species here, 36 of them native and 16 endemic to New Zealand. Look for weweia (dabchick), poaka (pied stilt) and shags, and on occasion matuku-hūrepo, the Australasian bittern. Hundreds of swans and other waterfowl gather in Tokaanu Bay.
Project Tongariro notes that dabchick and bittern are both globally threatened, that about 4% of New Zealand’s black swans regularly use the wetland, and that it is an important breeding area for three kinds of cormorant, black swans, three kinds of duck and scaup.
The quieter backwaters are best reached by paddling. DOC’s two suggested starting points are the Tokaanu tailrace boat ramp, from which you head out into the bay towards the delta, and the Tongariro River bridge, reached from State Highway 1, where kayaks can be put in. DOC also lists trout fishing from a boat or the shore, with a Taupō fishing licence.
Restoring Te Mātāpuna
Project Tongariro’s history of Te Mātāpuna notes a large Māori pā at Stump Bay, on the south side of the wetlands, under paramount chief Mananui Te Heuheu in 1847. The wetland changed after 1941, when the Lake Taupō control bridge was completed: lake levels rose and the wetland began to flood more often.
Much of the restoration work has gone into grey willow, an invasive weed: Project Tongariro records willows being cleared from several hundred hectares of the Mangaharakekenui wetlands in 2004, with the work later extending to the Tokaanu and Lake Rotoaira wetlands.
Project Tongariro, a Tūrangi-based community group, works with DOC to replace willows with native plants, and counts Te Mātāpuna among its flagship projects.
The group says three hapū, Ngāti Hine, Ngāti Rongomai and Ngāti Te Rangiita, agreed to partner with DOC in 2014, widening the area being restored.
DOC’s page credits Project Tongariro with leading restoration at the Waimarino Recreation Reserve in the north of Te Mātāpuna, which the group describes as “a rich mix of dry land, wetland and open water lagoon”. Volunteers help with the planting and look after trap lines, and the group invites people to sign up.
Where to Learn More
Department of Conservation: Tongariro River delta: reserve information, birds, plants and kayak access points. Reserve information: Crown Copyright: Department of Conservation Te Papa Atawhai 2026. Licensed under CC BY 4.0.
Project Tongariro: Te Mātāpuna Wetland: the history of the wetland restoration, its partners and how to volunteer.
Frequently Asked Questions
Where is the Tongariro River delta?
At the southern end of Lake Taupō, where the Tongariro River enters the lake near Tūrangi and Tokaanu Bay. It is about 33 to 38 km from Taupō in a straight line.
Is there a walking track through the delta?
DOC does not list one. The delta is a wetland best explored by kayak or boat.
Where can I launch a kayak?
DOC suggests the Tokaanu tailrace boat ramp, from which you head into the bay, or the Tongariro River bridge, reached from State Highway 1.
What birds might I see?
DOC has recorded at least 48 species, including weweia (dabchick), poaka (pied stilt), shags and occasionally matuku-hūrepo (Australasian bittern), plus hundreds of swans and other waterfowl in Tokaanu Bay.
What is Te Mātāpuna / South Taupō Wetland?
The wider wetland the delta belongs to, running along the lake shore from Motuoapa round to Waihi. Project Tongariro puts its size at about 1,500 hectares.
Who is restoring the wetland?
DOC and Project Tongariro, working with the hapū Ngāti Hine, Ngāti Rongomai and Ngāti Te Rangiita. Volunteers help with planting and trapping.
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