Last updated July 2026
Tomahawk Lagoon is a twin-lobed shallow lagoon on the western end of the Otago Peninsula within Dunedin city limits. It lies close to the southeastern edge of the urban area near Ocean Grove and offers easy access for fishing, walking and wildlife viewing. The top lagoon is stocked with rainbow trout by Otago Fish & Game and also holds brown trout and perch. Visitors enjoy scenic paths around the water and through regenerating bush, with good opportunities to observe waterfowl and other birds. The area provides a convenient day trip from central Dunedin, reachable in about 10 minutes by car.
Practical Information
| Location | Western end of Otago Peninsula, near Ocean Grove, Dunedin |
| Access | Tomahawk Road; parking at Domain Hall car park or via Oregon Street to playground and water’s edge |
| Fishing | Top lagoon stocked with rainbow trout; brown trout and perch present; bag limit 1 trout per day, no limit on perch; open all year |
| Depth | Maximum around 1.5 metres; shallow and often weedy |
| Facilities | Picnic areas; limited restrooms nearby at Domain Hall and Marlow Park |
| Best for | Trout fishing, walking, birdwatching |
About Tomahawk Lagoon
Tomahawk Lagoon consists of two shallow brackish lagoons joined by a narrow channel. The top (inner) lagoon is permanently closed off from the sea and functions as a wildlife reserve. Nutrient runoff from surrounding pastoral land contributes to its eutrophic character at times.
The lagoon supports quick fish growth due to abundant food sources including perch fry, bullies and aquatic insects. Warm summer conditions can reduce fishing success, so winter, spring and early summer are generally preferred.
Access points include the Domain Hall car park off Tomahawk Road and a gravel road from Oregon Street leading to additional parking beside the water. The setting combines open water views with wetlands and regenerating native bush.
Recreational use centres on angling from the shore and exploring the surrounding tracks. The area remains popular with families and beginners because of its proximity to the city and straightforward access.
Fishing at Tomahawk Lagoon
Only the top lagoon is stocked with hatchery-reared rainbow trout. Brown trout enter from connected waterways and perch are also present. Bait fishing is permitted and effective using worms or bullies suspended under a float. Fly and spin methods also work, with fast retrieves recommended to avoid weed.
Anglers should check current Fish & Game regulations before visiting, as bag limits and methods are specific to this water. Early morning and evening sessions often produce the best results.
Walking and Birdwatching
The Tomahawk Lagoon Walk and 41-Peg Track start from the picnic area beside the top lagoon. The track follows the lagoon edge through regenerating bush before climbing through farmland to the Soldiers Monument, offering views over the city, harbour and ocean. The full out-and-back route is approximately 5 km and takes 1.5 to 2 hours.
The wetlands attract ducks, swans, oystercatchers and other waterbirds, making the area popular for casual birdwatching. Visitors are encouraged to stay on formed tracks to protect the sensitive habitat.
What Visitors Often Say
Walkers appreciate the easy parking next to the lagoon and the mix of flat paths around the water with a steady climb offering good views. Many note abundant birdlife including swans and ducks, and describe the track as pleasant though it can become muddy after rain.
Anglers find the shallow lagoon convenient for beginners and families, with bait fishing proving reliable. Reviewers mention the peaceful setting and quick access from Dunedin but advise checking conditions in warmer months when weed and warmth can affect fishing.
Where to Learn More
Fish & Game New Zealand: Current regulations, stocking details and access map for Tomahawk Lagoon.
Wikipedia: Overview of geography, history and physical characteristics with references to primary sources.
Department of Conservation: Description of the Tomahawk Lagoon / 41-Peg Track including distance and highlights.
Frequently Asked Questions
Is Tomahawk Lagoon open for fishing all year?
Yes, the lagoon is open for fishing throughout the year.
What fish species are present?
Rainbow trout (stocked in the top lagoon), brown trout and perch.
What is the bag limit for trout?
One trout per day; there is no bag limit on perch.
Are dogs allowed?
Dogs are best left at home to protect the wetlands and wildlife; check current Dunedin City Council rules before visiting.
Are there toilets and picnic facilities?
Picnic areas exist beside the lagoon; restrooms are available nearby at the Domain Hall and Marlow Park.
What is the best time of year to fish?
Fishing is often best during winter, spring and early summer when water temperatures are cooler.
Is the track suitable for families?
The flat sections around the lagoon are straightforward; the climb to the monument is steeper and may suit older children.
Can I swim or launch a boat?
The lagoon is very shallow and primarily used for shore-based activities; swimming and boating are not typical uses.
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