Last updated July 2026
Nestled in Leith Valley, Sullivan’s Dam is a historic reservoir and popular reserve just north of Dunedin. The site supplies drinking water to the city while offering public access for walking and fishing. Surrounded by native bush and pine forest, it provides a peaceful setting for outdoor recreation. Visitors enjoy short family-friendly loops and longer tracks with views over the reservoir and surrounding hills. Swimming is not permitted to protect water quality.
Practical Information
| Location | Leith Valley, approximately 10 km north of Dunedin city centre |
| Access | Leith Valley Road; two small parking areas |
| Activities | Walking, trout fishing, wildlife observation |
| Swimming | Not permitted (water supply reservoir) |
| Dogs | Allowed on the 20-minute dam circuit; must be kept under control |
| Entry fee | None |
| Fishing | Rainbow trout; one fish daily limit |
| Best for | Short walks, fishing, quiet nature time |
About Sullivan’s Dam
Sullivan’s Dam was proposed in 1909 by City Councillor Archibald J. Sullivan to expand Dunedin’s water supply. Construction began in May 1913 and the reservoir officially opened on 15 July 1916. It impounds water from the upper Leith Valley catchment and remains an important part of the city’s water infrastructure, particularly for hill suburbs.
The dam sits in a forested valley east of Mount Cargill. The surrounding catchment is protected from livestock, supporting native vegetation and wildlife. Thousands of trees have been planted over the years as part of ongoing conservation efforts.
Today the area functions as both a working reservoir and a public reserve. It balances water supply needs with recreational use, including walking tracks and fishing. The site is managed to maintain water quality while allowing low-impact activities.
Access and Parking
Two small parking areas are located off Leith Valley Road. The first is near a gate shortly after crossing the bridge over State Highway 1. A second access point lies a short distance further north and involves a brief walk through forest to the upper end of the reservoir. Visitors should park considerately as spaces are limited.
Walking Tracks
A short 20-minute circuit around the dam is suitable for families and is dog-friendly. Longer options include the Cloud Forests of Leith Track, which climbs through regenerating forest toward viewpoints. The Leith Loop Track offers a 45-minute return side trip with expansive views over the dam and city. More experienced walkers can connect to the Escarpment Track, which leads toward Cowan Road.
Tracks feature boardwalks in places and pass through a mix of native bush and pine forest. Conditions can be muddy after rain, so sturdy footwear is recommended.
Fishing
The reservoir is stocked with rainbow trout and is a recognised local fishing spot. Anglers should follow Fish & Game Otago regulations, including the one-fish daily limit. Deeper water near the southern end and shallower weedy areas near the inflow provide varied fishing opportunities. The sheltered valley setting often protects anglers from wind.
What Visitors Often Say
Walkers appreciate the peaceful forest setting and easy short loops suitable for all ages. Many enjoy the quiet atmosphere and birdlife around the reservoir.
Fishers value the stocked rainbow trout and sheltered spots. Reviewers note the convenience of parking close to the water and the scenic bush surroundings.
Where to Learn More
Fish & Game NZ – Dunedin Fishing Spots: Details on access, species and regulations at Sullivans Dam.
Wikipedia – Sullivans Dam: Historical background and key facts with cited sources.
DOC – Dunedin Walks: Track descriptions and family-friendly options around the dam.
Frequently Asked Questions
Is swimming allowed at Sullivan’s Dam?
No, swimming is not permitted because the reservoir is part of Dunedin’s drinking water supply.
Are dogs allowed?
Yes, dogs are permitted on the short dam circuit provided they remain under control and do not enter the water.
What fish are in the dam?
The reservoir is stocked with rainbow trout. A one-fish daily limit applies.
Is there an entry fee?
No, access to Sullivan’s Dam and its tracks is free.
Are there picnic facilities?
There are no formal picnic tables or facilities, but visitors often enjoy informal spots near the parking areas or along the short loop.
What is the best time to visit?
Spring and autumn offer mild conditions. Summer can be pleasant but busier, while winter provides quieter visits.
Are guided tours available?
No guided tours operate at the dam. Visitors explore independently using the marked tracks.
Is the area wheelchair accessible?
The short dam circuit is relatively flat but surfaces vary; the longer tracks are not suitable for wheelchairs.
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