Last updated July 2026
Discover the serene setting of Lake Mangamahoe, a man-made reservoir just south of New Plymouth that serves as both a water supply and a popular recreational spot in Taranaki. The lake offers fly fishing for brown and rainbow trout in a scenic environment with views of Taranaki Maunga. Surrounded by production forest and pockets of native bush, it provides easy access for locals and visitors seeking a peaceful outdoor experience. Walking tracks, mountain bike trails and picnic areas add to its appeal beyond angling.
Practical Information
| Location | 10 minutes south of New Plymouth on SH3, between New Plymouth and Inglewood |
| Access | From Junction Road or Plantation Road; parking available |
| Fishing | Fly fishing only; licence required; no boats permitted; season 1 Oct–30 Sept; bag limit 2 trout |
| Walking | 6 km lake circuit track, medium/hard grade |
| Other activities | Mountain biking park, bridle trail for horses, picnicking |
| Dogs | Prohibited within 200 m of the lake |
| Facilities | Parking, toilets, picnic areas; wheelchair-accessible casting platform |
| Entry | Free public access |
About Lake Mangamahoe
Lake Mangamahoe is a man-made reservoir created in 1931–1932 by damming the valley to supply water for New Plymouth and support the Mangorei hydro scheme. It also functions as a wildlife refuge. The lake sits in a scenic valley with views across the water to Taranaki Maunga, framed by production forest and regenerating native bush.
The site balances its primary role as a water catchment with recreational use. Local authorities manage the area to maintain water quality while supporting fishing, walking and other activities. The combination of still waters, forest setting and mountain backdrop creates a distinctive Taranaki destination.
Visitors appreciate the lake’s accessibility and variety of experiences. Shoreline paths allow easy exploration, while dedicated trails cater to different interests. The reflective surface often provides striking views of the mountain, especially on calm days.
Fly Fishing at Lake Mangamahoe
Lake Mangamahoe is the most popular lake fishery in the Taranaki region, holding brown trout up to 2.6 kg and rainbow trout up to 2.25 kg. Only fly fishing from the shore is permitted; boats are not allowed on the lake or in the Waiwhakaiho Inlet. A valid Fish & Game licence is required, and anglers must follow the current regional regulations, including a two-fish daily bag limit.
Fishing is often productive in calm conditions when trout cruise near the surface. A wheelchair-accessible casting platform is located along the main access road. Recent reports note good fishing for hatchery rainbows with occasional browns sighted in clear water.
Walking Trails and Other Recreation
The main attraction for non-anglers is the 6 km lake circuit walk, graded medium to hard with some steep undulating sections. The track passes through production forest, offers lookouts and includes pockets of native bush. It is suitable for a range of fitness levels, though sections can become slippery after rain.
Mangamahoe Mountain Bike Park provides purpose-built trails ranging from easy to expert grades, accessed from Plantation Road. A dedicated bridle trail of approximately 5 km caters to horse riders. Picnic areas and multiple viewpoints, including elevated spots with panoramic mountain views, make the site popular for families and casual visitors.
Access, Facilities and Safety
Entry points are well signposted off State Highway 3. Parking is available near the lake, along with toilets and picnic facilities. The area is open during daylight hours. Dogs are prohibited within 200 metres of the lake to protect water quality and wildlife.
Anglers and walkers should check weather conditions, as sudden changes can occur. Follow all signage and respect the water supply function of the lake. Current fishing regulations and access details are available from Fish & Game New Zealand.
What Visitors Often Say
Walkers and families praise the circuit track for its scenic variety and rewarding mountain views, noting it offers a pleasant outing suitable for different ages and abilities despite some steeper sections.
Anglers highlight the peaceful shoreline fishing, clear water for sight fishing, and the convenience of the accessible casting platform, often describing successful outings with both rainbow and brown trout.
Where to Learn More
New Plymouth District Council: Official page with walking details, access information and facilities at Lake Mangamahoe.
Fish & Game New Zealand: Regional fishing information, regulations and lake-specific rules for Taranaki.
Taranaki Sports Fishing Regulations 2025/2026: Current season rules, bag limits and restrictions for Lake Mangamahoe.
Frequently Asked Questions
Is a fishing licence required at Lake Mangamahoe?
Yes, a valid Fish & Game New Zealand licence is required for all anglers. Fly fishing only is permitted and boats are not allowed.
What fish are in Lake Mangamahoe?
The lake holds brown trout up to 2.6 kg and rainbow trout up to 2.25 kg. It is a popular fly-fishing destination with regular stocking of rainbows.
What is the best time to fish Lake Mangamahoe?
Fishing is often good in calm conditions, especially early mornings or when trout are visible cruising near the surface. The season runs from 1 October to 30 September.
Are there walking tracks at Lake Mangamahoe?
Yes, a 6 km circuit track circles the lake with lookouts and forest sections. It is graded medium to hard with some steep parts.
Can I take my dog to Lake Mangamahoe?
No, dogs are prohibited within 200 metres of the lake.
Is Lake Mangamahoe suitable for mountain biking?
Yes, the Mangamahoe Mountain Bike Park offers trails from easy to expert grades, accessed from Plantation Road.
Are there facilities at the lake?
Parking, toilets and picnic areas are available. A wheelchair-accessible casting platform is located near the main access road.
Is entry to Lake Mangamahoe free?
Yes, public access is free, though a fishing licence is needed for angling.
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