Rivers and Streams

Merrilands Domain New Plymouth: Sports Park, River Swimming and Hall Hire

Last updated July 2026

Merrilands Domain is a sports park and riverside reserve on Mangorei Road in New Plymouth, offering soccer fields, open spaces, walking paths and access to the Waiwhakaiho River for swimming and picnics. Managed by the New Plymouth District Council, the domain includes the Merrilands Domain Hall available for community hire.

The Taranaki Regional Council monitors water quality at the river site through the LAWA programme, with results generally suitable for swimming though caution is advised after heavy rain. Visitors appreciate the convenient location near residential areas and the combination of active sports facilities with relaxed riverside recreation.

Swimming Facts

Water testing spotTToiletsPParking
Testing spots: LAWA and Taranaki Regional Council. Facilities: OpenStreetMap.
Safe to swim today?

Taranaki Regional Council tests Merrilands Domain weekly from November to March. Check the latest result before you swim, and stay out of the water for 48 hours after heavy rain.

Today’s result on LAWA

Today at Merrilands Domain

Thursday 15 October
Sunrise
6:38am
First light about 6:10am
UV
7 high
Cover up 9:50am to 4:30pm
Sunset
7:42pm
Light till about 8:10pm
UV: worked out for a clear day from the height of the sun and typical ozone; cloud lowers it, but you can still burn.

Water quality track record

1Waiwhakaiho River at Merrilands DomainPoor
69% of 131 tests suitable for swimming, 2019 to 2025
19/20
20/21
21/22
22/23
23/24
24/25
SuitableCautionUnsuitableEach bar is one summer of tests
Toxic algae checked 73 times since 2019, 46 warnings (39 at the highest level). Toxic algae can kill dogs: keep them out of the water if you see dark mats on rocks or scum on the surface.
What the grades mean

Excellent and Good: rarely unsafe for swimming. Fair: usually fine, but avoid swimming after rain. Poor: often unsuitable, especially after rain, so check the latest result first.

Grades use LAWA’s method: the 95th percentile of routine E. coli results over the five summers from 2020/21 to 2024/25, with at least 50 tests (3,650 per 100 mL from 104 tests).

Water quality: © LAWA and partner organisations (Taranaki Regional Council), licensed under CC BY 4.0, results to March 2025. Facilities: © OpenStreetMap contributors.

Practical Information

Location
251 Mangorei Road, New Plymouth
Manager
New Plymouth District Council
Key facilities
Soccer fields, walking paths, public toilets, Merrilands Domain Hall (capacity 250)
Water quality monitoring
Taranaki Regional Council via LAWA
Parking
Available on site
Hall hire
Main hall, committee room, kitchen (no crockery), accessible toilet

About Merrilands Domain

Merrilands Domain functions primarily as a sports park with three fields used mainly for soccer, alongside open grass areas suitable for informal recreation and picnics. The site sits beside the Waiwhakaiho River, providing natural river access for swimming and water play in a setting surrounded by residential neighbourhoods and close to Audrey Gale Reserve.

The domain is managed by the New Plymouth District Council as part of its network of sports parks and reserves. Pathways support walking and casual exercise, while the adjacent Merrilands Domain Hall offers indoor space for community events and gatherings.

Water quality at the Waiwhakaiho River site is regularly tested by the Taranaki Regional Council. Results are published on the LAWA website, indicating conditions are generally suitable for swimming, although young children, the elderly or those with compromised health may face increased risk, and swimming is not recommended after heavy rainfall due to potential contamination.

Sports and Recreation

The three soccer fields form the core of the domain’s active recreation offering, supporting organised club play and casual use. Open grass areas accommodate informal games, picnics and general play, while walking paths provide scenic routes through the reserve and along the river margin.

These facilities make the domain a convenient local venue for both structured sport and relaxed outdoor activity in New Plymouth.

Swimming and Water Activities

The Waiwhakaiho River at Merrilands Domain provides a natural swimming spot popular with locals for cooling off during warmer months. Access is straightforward from the domain, with basic amenities such as toilets supporting day visits.

Swimmers should check current water quality on the LAWA website before entering the river. The Taranaki Regional Council advises avoiding the water for several days after significant rainfall to reduce health risks from runoff.

Facilities and Hall Hire

Public toilets, including an accessible facility, are available at the domain. The Merrilands Domain Hall, located at 251 Mangorei Road next to the New Plymouth Rangers Football clubrooms, features a main hall, committee room and kitchen facilities without crockery. The hall has a maximum capacity of 250 people and is available for hire through the New Plymouth District Council.

Parking is provided on site for visitors using the fields, river access or hall.

Where to Learn More

New Plymouth District Council: Details on Merrilands Domain Hall facilities, capacity and bookings.

LAWA: Current water quality results and swimming suitability for the Waiwhakaiho River at Merrilands Domain.

Taranaki Regional Council: Broader guidance on recreational water quality monitoring across Taranaki sites.

Frequently Asked Questions

Is Merrilands Domain open to the public?
Yes, the domain is a public sports park and reserve with free access for recreation, walking and river activities.

Are dogs allowed at Merrilands Domain?
Dogs are permitted under New Plymouth District Council rules; they must remain under control and owners must clean up after them. Check the council dog walking map for any specific restrictions.

Is there parking at Merrilands Domain?
Yes, on-site parking is available for visitors.

Can I hire the hall at Merrilands Domain?
Yes, the Merrilands Domain Hall is available for hire through the New Plymouth District Council. It includes a main hall, committee room, kitchen and accessible toilets with a maximum capacity of 250 people.

Is the water safe for swimming at Merrilands Domain?
Water quality is monitored and generally suitable, but conditions can change after rain. Always check the latest LAWA results before swimming.

Are there toilets at Merrilands Domain?
Yes, public toilets including an accessible facility are available on site.

What sports are played at Merrilands Domain?
The domain has three fields used primarily for soccer, with open spaces for other informal activities.

Is Merrilands Domain wheelchair accessible?
The hall includes an accessible toilet, and pathways support general access, though visitors with mobility needs should assess conditions on site.

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