Last updated July 2026
Lake Namunamu is a 13-hectare natural lake in the hill country of the Whanganui region, stocked annually with rainbow trout by Fish & Game. It lies on private property within Ngaruru Forest and offers a remote, scenic fishery for those who can access it. The lake features good water quality with several inlets and is known for producing well-conditioned trout averaging around 2 kg. Access is currently closed due to upcoming logging operations in the surrounding forest. A biosecurity alert remains relevant following the 2019 discovery of hornwort, requiring strict clean, check, dry protocols for all gear.
Practical Information
| Location | Ngaruru Forest, 14 km west of Hunterville on Turakina Valley Road |
| Lake size | 13 hectares |
| Target species | Rainbow trout (stocked annually by Fish & Game) |
| Land status | Private property — access currently closed for logging preparations (may last 3–5 years) |
| Biosecurity | Hornwort present — follow Check, Clean, Dry protocols |
| Fishing licence | Freshwater fishing licence required |
About Lake Namunamu
Lake Namunamu sits in a peaceful, forested setting with mirrored waters and a quiet atmosphere. Fish & Game releases approximately 1,000 yearling rainbow trout each year, and the fish grow well in the lake’s conditions. The lake’s natural inlets and depth support trout that can reach 2 kg or more when conditions are favourable.
The lake is managed as a private-land fishery, meaning visitors must respect landowner arrangements and current restrictions. Logging preparations have led to a temporary closure that could extend for several years, so checking the latest status with Fish & Game is essential before any travel.
Hornwort, an invasive aquatic weed, was detected in 2019. Organisations assessed the infestation and emphasised prevention measures. Anglers must thoroughly clean, check and dry all equipment, boats and clothing before arriving and after departing to prevent further spread.
Access and Current Conditions
Access to Lake Namunamu is on private property and is currently closed in preparation for forest logging operations expected to last 3–5 years. The Fish & Game Whanganui fisheries page provides the most up-to-date information on when access may reopen. Visitors should never attempt to enter without confirmed permission and current clearance.
Where to Learn More
Fish & Game — Whanganui Fisheries: current access status, stocking details and fishing information for Lake Namunamu.
Fish & Game — Biosecurity Alert for Lake Namunamu: details on the hornwort discovery and required angler actions.
Frequently Asked Questions
Where is Lake Namunamu?
It is located in Ngaruru Forest on private property, 14 km west of Hunterville on Turakina Valley Road in the Whanganui region.
Can I fish at Lake Namunamu?
Access is currently closed due to logging preparations that may last 3–5 years. Confirm the latest status with Fish & Game before planning any visit.
What fish are in Lake Namunamu?
The lake is stocked annually with rainbow trout by Fish & Game. A freshwater fishing licence is required.
What is the current access situation?
Access is closed while the surrounding forest is prepared for logging. Check the Fish & Game Whanganui fisheries page for updates.
What is the biosecurity alert about?
Hornwort, an invasive aquatic weed, was discovered in 2019. All gear must be cleaned, checked and dried before arriving and after leaving.
Do I need a licence to fish Lake Namunamu?
Yes, a current freshwater fishing licence is required for trout fishing.
How large is Lake Namunamu?
The lake covers 13 hectares and has several inlets with good water quality.
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