Ihungia River

A River in the Waiapu Catchment

The Ihungia rises inland from Te Puia Springs—whose name literally means "the hot springs" in Māori—and flows north for approximately 14 kilometres before meeting the Mata River. From there the water continues into the Waiapu River, which is described in Te Ara Encyclopedia of New Zealand as "the major artery and spiritual heart of the Ngāti Porou landscape." The Ihungia's own catchment is modest: eight named tributaries funnel rainwater from the surrounding hills, including the Waihua, Te Kākā, Kouetumarae, Te Matarau, and Mangarākeke streams from the west, and the Waipapa, Karikarihuata, and Mangara streams from the east.↗↗↗↗

The East Coast receives prodigious rainfall—approaching 2,000 mm annually at nearby Ruatoria—and the Ihungia's flow reflects that: winter months in particular see swollen, fast-moving water carving through its boulder-strewn channel. The annual average makes this one of the wetter regions in the North Island, which gives the river a wild, energetic character even outside major storm events.↗

Reaching the Ihungia

The Ihungia Road Bridge is the crossing that connects this stretch of river to State Highway 35, the long coastal road that threads north from Gisborne toward the East Cape. The nearest recognised settlement is Te Puia Springs, about 28 km south of Ruatoria, where a small hot-spring pool and historic accommodation house sit beside the highway. Ihungia itself appears in early twentieth-century records as a district—visitors from "Tokomaru, Te Puia, Ihungia, Tuparoa and elsewhere" are listed in a 1919 Waipiro Bay newspaper report—suggesting a small farming community once clustered along the river banks.↗↗

The land around the Ihungia is predominantly hill-country sheep and cattle farming, with forestry expanding on steeper slopes. Public access to the river itself is limited and largely through private farmland; the main experience for a passing traveller is the view from the road bridge and the landscape of rolling hills, incised stream gullies, and distant Raukūmara Range foothills.

What Makes It Worth Noticing

For the curious traveller driving State Highway 35 between Tokomaru Bay and Ruatoria, the Ihungia Valley offers a window into how the East Coast's intricate network of waterways shapes daily life. The region is overwhelmingly Māori in population—Ruatoria sits at over 90% Māori by ethnicity—and the rivers are part of tribal identity expressed in the well-known whakataukī: "Ko Hikurangi te maunga, ko Waiapu te awa, ko Ngāti Porou te iwi" (Hikurangi is the mountain, Waiapu is the river, Ngāti Porou is the tribe). Every stream that feeds the Waiapu, including the Ihungia via the Mata, belongs to that living geography.↗↗

The river's name itself carries the weight of place. In Māori, "Ihungia" refers to a small freshwater mussel (kākāhi), hinting that the clear, shaded stream reaches once supported stands of these shellfish—though modern sediment loads from upstream deforestation have reduced water quality across the Waiapu catchment.

Nearby Stops on State Highway 35

If the Ihungia draws you off the main road, the surrounding East Coast offers several worthwhile points. Te Puia Springs' thermal pool and renovated hotel are a relaxing half-hour stop. Tokomaru Bay, with its historic whaling heritage and creative community, lies 20 minutes south. Northward, the town of Tikitiki holds St Mary's Church, completed in 1926 under the direction of the famous Ngāti Porou leader Sir Apirana Ngata and widely regarded as one of the finest Māori churches in New Zealand for its carved panels, tukutuku weaving, and stained glass. From Tikitiki, the road continues through the Waiapu Valley where Rangitukia sits at the river mouth—home to the legendary ancestor Paikea.↗↗