Last updated October 2026
Lake Rotoaira is a shallow lake on the volcanic plateau between State Highways 46 and 47, about 20 minutes’ drive south of Tūrangi, with Mount Tongariro to the south and Mount Pihanga to the east. It holds a large population of hard-fighting rainbow trout.
The lake is managed by the Lake Rotoaira Trust for Ngāti Tūwharetoa hapū, and it has its own licence: a Taupō fishing licence does not cover it, and you do not need one here. Buy the Lake Rotoaira licence online through DOC before you go. The lake is closed to fishing from 1 July to 31 August.
At a Glance
- Location
- Between SH46 and SH47, about 20 minutes’ drive south of Tūrangi
- Water
- Fresh: Lake Rotoaira, plus the Wairehu Canal and the Poutu Canal
- Main species
- Rainbow trout, mostly about 1 to 1.5 kg
- Methods
- Fly, spinner or spoon; no natural bait
- Season
- 1 September to 30 June (closed 1 July to 31 August)
- Hours
- No fishing between 11pm and 5am
- Licence
- Lake Rotoaira licence from the Lake Rotoaira Trust, sold online through DOC; a Taupō licence is not needed and does not cover it
- Access
- Boat ramps off SH47 at the northern end and off SH46 at the south-west corner; Opōtaka Historic Reserve on the north shore
- Tides
- None; the level and the canal currents change with the power scheme
- Suits
- Boat and float tube anglers, and fly or spin anglers from the shore
No tides. The level and the currents at the canal inlets and outlets change as water is moved through the Tongariro Power Scheme, and wind and cold come in fast on this exposed lake.
More About Lake Rotoaira
Lake Rotoaira covers about 13 square kilometres and sits 564 m above sea level. It is a natural lake, but it has been heavily changed by hydro development: the Poutu Dam raised it by about half a metre, and it is now a key storage lake for the Tongariro Power Scheme.
Water comes in through the Wairehu Canal from the west and the Poutu Canal from the east, and leaves through the Tokaanu tunnel to the Tokaanu Power Station, and from there into Lake Taupō.
Because water is moved in and out for power generation, the lake level goes up and down and the currents change at the canal inlets and outlets. The weed around the margins holds plenty of food, which is why the lake supports so many trout. The lake hosted the 28th World Fly Fishing Championships.
The Lake Rotoaira Trust administers the lake for Ngāti Tūwharetoa hapū and runs programmes to restore the lake’s fishery, waterways and wetlands. Since September 2021, under the Ngāti Tūwharetoa Treaty settlement of 2017, anglers need only the Trust’s licence to fish here, where they once needed both a Taupō licence and a Trust permit.
On the north shore, Opōtaka Historic Reserve protects the site of a kāinga where Te Rauparaha is believed to have composed the haka Ka Mate. Paths and panels explain the site, with views across the lake to Tongariro and Pihanga. Treat it as the historic place it is.
How to Fish Lake Rotoaira
Where and when
The lake is shallow, and the weed around its edges holds much of the trout food, so work the margins. A boat or float tube lets you cover more of the shoreline than you can reach on foot.
The season runs from 1 September to 30 June, and the lake is closed through July and August. The Trust can change the closing dates, so check before an early or late trip.
Methods
Only artificial flies, artificial minnows and spoons may be used, on one rod with a running line. Natural bait is banned. Fly anglers fish a floating line with nymphs or a suspended fly, or swing wet flies and streamers.
Spin anglers use light gear with dark bladed spinners. In the Wairehu Canal, minnows and spoons are not allowed, so it is fly only there. Trolling is banned in parts of the lake marked by coloured markers.
What to use
- Rainbow trout: the only trout the lake is known for, feeding through the weedy margins.
- Nymphs: Hare and Copper, Halfback, Pheasant Tail and green caddis patterns in sizes 12 to 16.
- Dry flies: Daddy Long Legs and Coch-y-Bondu, with cicada and green beetle patterns in summer.
- Day streamers: Woolly Bugger, Red Setter, Grey Ghost, Taupo Tiger, Rabbit patterns and Hamill’s Killer.
- Night flies: Black Phantom, Craig’s Night Time, Fuzzy Wuzzy and Scotch Poacher, fished before the 11pm cut-off.
- Gear: a 6 or 7 weight fly rod with a floating line and a long leader of about 6 m, or a spinning rod with 6 lb line.
Getting There and Facilities
- From Tūrangi: take SH41 to the Tokaanu junction and turn onto SH47, which runs along the north side of the lake. SH46 runs along the south side and joins SH1 at Rangipō.
- South-west ramp: off SH46 at Otukou. A gravel apron runs down to a ramp beside two short jetties, with bush along the shore to the north.
- North ramp: just off SH47 at the northern end of the lake.
- Opōtaka Historic Reserve: a signposted road off SH47, west of the Lake Rotopounamu Track car park, leads to the north shore.
- Landing: boats may land only on Trust land at the campground. Landing anywhere else, including Motuopuhi Island, needs the landowner’s permission.
- Supplies: there are no shops at the lake. Buy flies, tackle and food in Tūrangi before you leave.
- Nearby: Lake Ōtamangakau, just to the west, is fished on a Taupō licence rather than the Rotoaira one.
Rules and Safety
Licence and rules
- Licence: you need a Lake Rotoaira fishing licence, issued by the Lake Rotoaira Trust and sold online through DOC’s Taupō licence store. It covers the lake, the Wairehu Canal from the lake to its last drop, and the Poutu Canal. Carry it while you fish.
- Taupō licence: not needed for Rotoaira, and it does not cover the lake. You still need a Taupō licence to fish anywhere else in the Taupō Fishing District.
- Owners and descendants: fish free but must carry a Mana Whenua Fishing Licence, issued by the Trust’s Kaitiaki Ranger (ra****@**********ra.com).
- Season and hours: open 1 September to 30 June; no fishing between 11pm and 5am.
- Limits: the Trust sets the daily limit and minimum size. Check the current figures on the DOC Lake Rotoaira licence page before you fish.
- Boats: keep to 8 km/h within 200 m of the shore or of another boat, stay at least 30 m from other boats that are fishing, and do not fish from a drifting boat within 300 m of a canal mouth. Boats longer than 6 m are not allowed.
Safety
- This is an exposed mountain lake. Weather changes quickly, so take warm and waterproof layers even in summer.
- The level and the currents near the canal inlets and outlets change without warning as water is moved for power generation. Take care near the canal mouths.
- The Trust advises that help is about 20 minutes away. In an emergency call 111, and boaters can monitor VHF channel 62.
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Common Questions
Do I need a Taupō fishing licence for Lake Rotoaira?
No. Lake Rotoaira has its own licence from the Lake Rotoaira Trust, and a Taupō licence does not cover it. Buy the Rotoaira licence online through DOC.
Where do I buy a Lake Rotoaira licence?
Online through DOC’s Taupō licence store, on the Lake Rotoaira licence page. Licences cannot be bought during the closed season. Owners and their descendants get a free Mana Whenua licence from the Trust’s Kaitiaki Ranger.
When is Lake Rotoaira open for fishing?
From 1 September to 30 June. It is closed from 1 July to 31 August, and the Trust can vary the dates.
What fish are in Lake Rotoaira?
Rainbow trout, mostly around 1 to 1.5 kg, in good numbers.
Can I use bait at Lake Rotoaira?
No. Only artificial flies, minnows and spoons are allowed, and in the Wairehu Canal only flies.
What are the bag and size limits?
The Lake Rotoaira Trust sets them. Check the current limits on the DOC Lake Rotoaira licence page before you fish.
Where can I launch a boat?
There are ramps off SH47 at the northern end and off SH46 at the south-west corner. Boats over 6 m are not allowed, and you may land only on Trust land at the campground.
Does the licence cover the canals?
Yes. It covers the Wairehu Canal from the lake to its last drop, and the Poutu Canal.
Spotted something incorrect on this page? Let us know.
Related links 3
- DOC: Lake Rotoaira fishing licences: where to buy, the season, the waters covered and the Trust’s rules.
- Lake Rotoaira Trust: fishing licences: season notices and contact details for the Kaitiaki Ranger.
- Rotoaira Trout Fishing Regulations 1979: methods, hours and boat rules for the lake.