Glenfern Sanctuary is a private conservation sanctuary on Aotea / Great Barrier Island, about 100 kilometres northeast of Auckland. Located on the Kotuku Peninsula near Port FitzRoy, it protects 240 hectares of predator-fenced native bush including some of Auckland’s oldest kauri trees — one stands at around 600 years old. Glenfern is primarily known as a unique conservation stay, but day visitors are welcome to walk the sanctuary tracks for free. It is a different proposition from the mainland regional parks: getting there requires a ferry or flight, and the experience is shaped by the island’s remoteness.
Practical Information
| Location | Port FitzRoy area, Aotea / Great Barrier Island |
| Access to island | Ferry from Auckland city to Tryphena (approximately 4.5 hours); or flight from Auckland to Claris airport (approximately 30 minutes) |
| Access to sanctuary | 45-minute drive north from Claris airport; approximately 1.5 hours from Tryphena ferry terminal |
| Day visitor entry | Free |
| Hours | Sunrise to sunset for day visitors |
| Accommodation | Fitzroy House and Glenfern Cottage available; rates from $200 per night (2-night minimum stay) |
| Facilities | Bush tracks; no on-site café or shop; accommodation guests have full kitchen access |
| Dogs | Not permitted — active predator control on site |
About Glenfern Sanctuary
Glenfern has been developed as a conservation project since the early 2000s, with a predator-proof fence enclosing the Kotuku Peninsula. Inside, native species have recovered significantly — kākā, kererū, pāteke (brown teal), and black petrel all inhabit the sanctuary. The predator-free environment means birdlife here is noticeably richer than in unmanaged bush, and encounters with kākā in particular are common.
The sanctuary’s standout feature is its ancient kauri. The Glenfern Loop Track — roughly 2 kilometres — passes through regenerating and remnant native bush, including a canopy walkway built into a 600-year-old kauri tree. Swing bridges span through the high canopy, providing an unusual perspective on the forest structure. From Sunrise Rock at the top of the track, the views sweep across the Hauraki Gulf and surrounding island landscape. The track takes one to two hours at a relaxed pace.
A purpose-built pond supports the pāteke population — brown teal are critically endangered on the mainland but have a stronger presence on Aotea. The historical buildings on site, including Fitzroy House, date from the island’s farming era and have been carefully restored.
Staying at Glenfern
Glenfern Cottage is a three-bedroom historic cottage sleeping up to six, with kitchen, living area, and bathroom. Fitzroy House provides larger accommodation. Both are within the sanctuary grounds. The remoteness of the location — no phone reception in parts of the island, no on-site food service — is part of the experience: evenings at Glenfern are genuinely dark and quiet. A two-night minimum applies to all bookings.
What Visitors Say
“You can climb into a 600-year-old kauri tree, walking up and across a swing bridge — the view from Sunrise Rock at the top is spectacular and worth the walk.” — TripAdvisor reviewer
“Got up close with friendly pāteke, kākā, and kererū who frequented the gardens — the bird life inside the fence is remarkable.” — visitor review
Where to Learn More
Glenfern Sanctuary official site — track information, accommodation bookings, conservation background, and practical visitor information.
Great Barrier Island / Aotea tourism — ferry and flight options, island maps, accommodation directory, and things to do across the island.
Frequently Asked Questions
Can I visit Glenfern Sanctuary as a day visitor?
Yes. Day visitors are welcome and entry to the sanctuary tracks is free. You will need to get yourself to Aotea / Great Barrier Island first — either by ferry from Auckland (approximately 4.5 hours to Tryphena) or by flight to Claris (approximately 30 minutes).
What is the canopy walkway like?
The kauri canopy walk passes through the upper branches of a 600-year-old kauri tree via a series of swing bridges. It requires a moderate level of fitness and comfort with heights. Allow around two hours for the full Glenfern Loop including Sunrise Rock.
Is Glenfern a predator-free sanctuary?
Yes. The Kotuku Peninsula is enclosed by a predator-proof fence, with active trapping and monitoring. No cats or dogs are permitted inside the sanctuary. The fence has allowed native species — particularly kākā, pāteke, and black petrel — to recover.
How do I get to Great Barrier Island?
By sea: Fullers360 and SeaLink operate ferries from Auckland’s downtown ferry terminal; journey to Tryphena is approximately 4.5 hours. By air: Barrier Air and Fly My Sky operate flights from Auckland Airport and North Shore Aerodrome to Claris — approximately 30 minutes.
Do I need to book accommodation in advance?
Yes. Glenfern Cottage and Fitzroy House require advance booking. A two-night minimum applies. Contact Glenfern directly via their website for availability.
More to Explore
Glenfern is one of many conservation destinations accessible from Auckland. For mainland parks and reserves, the Auckland parks and reserves hub covers the full range of regional parks across the Auckland region, from the Mahurangi Peninsula to the Hunua Ranges.