Into the Gorge: Mohaka River Grade 4/5 — Full‑Day Whitewater Through 200 m Canyons

Mohaka River – Grade 4/5 is a full-day wilderness rafting run on the Mohaka River in Te Pōhue, Hawke's Bay Region, New Zealand. This guided trip drops paddlers into a dramatic stretch of river that cuts through near-vertical canyon walls, offering roughly five hours on the water inside gorges that rise as much as 200 metres above the current. The run is famous locally for technical, sustained whitewater: long, powerful waves and strong hydraulics demand constant teamwork and precise boat positioning.

The trip’s opening sequence in the 4/5 section includes Long Rapid, a feature where higher flows cover most rocks and create a braided, boiling channel that teaches quick-decision-making and commitment. Between rapids you’ll watch angled rock faces and water-polished ledges pass beneath the raft; these raw canyon walls carve sound and light into an intense outdoor classroom. Channels narrow to force lines between boulders and holes; portaging or short walks are occasionally necessary when flows or hazards require it.

Operationally, expect an 8.5 to 9 hour day, with shuttle transfers by van and a maximum group of 12 paddlers. Operators require a minimum of six people to run the trip; if you’re below that threshold they may build a run or advise alternate dates. All standard rafting gear is supplied and photos are included, but groups must arrive ready to paddle hard — prior grade 3 experience and confident swimming are strongly recommended. The operator enforces strict safety rules: no alcohol before or during the trip, chest and weight limits apply, and minors must be accompanied by an adult.

What sets this run apart is its combination of sustained technical whitewater inside rare, tall-walled canyons and the genuine wilderness setting. The Mohaka sits as one of the North Island’s standout rivers for experienced paddlers, with a sense of scale and exposure that’s uncommon so close to Hawke’s Bay’s populated corridors. It’s an outing that tests fitness and teamwork while delivering cinematic river scenery.

If you go, train for repetitive paddling efforts, bring quick-dry layers, sun protection, and a willingness to follow guides’ commands. Leave no trace in the river corridor, respect local cultural ties to the water, and be prepared for a demanding, unforgettable day where skill and concentration turn raw river energy into one of New Zealand’s most memorable raft trips. Guides typically run a safety briefing, demonstrate paddle strokes, and rehearse rescue moves before launch; listen carefully and stay vocal in the raft. Bring a small dry pack for essentials and leave expensive electronics at base unless secured in waterproof housing. Expect river sounds to dominate: the slap of water, the shout of commands, and long quiet stretches where canyon walls amplify wind and bird calls. Enjoy.