How to visit Milford Sound sustainably
- Alice Neilson - Fiordland Enthusiast & Writer
- 6 days ago
- 7 min read
Milford Sound is located inside Fiordland National Park, one of New Zealand's most ecologically significant areas. Visiting in a way that helps look after the area is part of what makes it possible for future visitors to enjoy it too.
This guide covers why Fiordland's protection matters, what it means for visitors, and top tips for minimising your footprint while you're there.
Key Takeaways
Fiordland National Park is the largest national park in New Zealand and forms part of the Te Wāhipounamu UNESCO World Heritage Site.
It's home to many threatened native species that exist nowhere else in the world.
There are no rubbish bins along the Milford Road, so you'll need to take all your rubbish with you.
A new fee for international visitors to the national park is expected to come into effect next year, with proceeds going toward conservation and visitor infrastructure.
Simple actions like staying on marked trails, not feeding wildlife, and cleaning your gear before entering water all make a real difference.
Choosing tour and cruise operators that give back to the area is another way to support conservation in Fiordland.
Helicopter tours involve emissions, but the deeper appreciation many visitors gain from seeing Fiordland from above can lead to greater long-term support for conservation.
Why Fiordland National Park Matters
Fiordland National Park is the largest of New Zealand's 13 national parks, covering 12,607 square kilometres (around 1.2 million hectares). It takes up most of the south-west corner of New Zealand’s South Island.
It is also among the largest national parks in the world, and is larger than the United States' Yellowstone and Yosemite national parks combined.
A UNESCO World Heritage Site
Fiordland National Park and Milford Sound form a major part of Te Wāhipounamu, a UNESCO World Heritage Site established in 1990. Te Wāhipounamu also includes Aoraki/Mount Cook National Park, Westland Tai Poutini National Park, and Mount Aspiring National Park.
UNESCO World Heritage status is given to places that have outstanding cultural or natural importance to humanity. Sites are recognised by the United Nations and protected under international agreements, so they're preserved for future generations.
Being part of Te Wāhipounamu means Fiordland National Park is considered globally significant. The area was recognised for its glacier-shaped landforms, rare native plants and animals, and the largely untouched state of its wilderness.
A Refuge for Native Wildlife
Fiordland is one of the most important refuges in New Zealand for threatened native species, such as the takahē, mōhua (yellowhead), southern brown kiwi, and kea (the world's only alpine parrot).
It's also home to native dolphins, bats, reptiles, and a wide range of insect species. Many of these species are endemic to New Zealand, which means they exist nowhere else in the world.
These species rely on the specific conditions of the Fiordland ecosystem to survive. The trees, shrubs, insects, birds, and waterways all interact with each other, and the whole system needs to be intact for any one part of it to thrive.
Large, Connected Areas
Wildlife does best in large areas of connected habitat. When habitats are broken up (such as through logging or development), individual species struggle because they don't have enough territory to support healthy populations.
Connected habitats also support more species overall. The larger and more connected an area is, the greater variety of plant and animal life it can sustain.
Protecting an area as large as Fiordland National Park gives rare species a real chance of long-term survival, and it means people can continue to visit and experience the unique scenery and wildlife.
Pristine Waterways
The water in Fiordland's rivers is so clean you can drink straight from the source, which isn't possible in most parts of the world.
Much of the water in the National Park comes from rain and alpine sources, flowing through native forest before reaching the rivers and lakes below.
The surrounding forests help keep the waterways clean by filtering water as it moves through the landscape. Because there is very little development in the area, the water systems remain far less affected by pollution than in many other places.
Protecting these waterways helps the whole ecosystem. Native fish, insects, birds, forest plants, and marine life all depend on clean, healthy waterways.
Why Ongoing Protection Matters
A common question we're asked is why the trees in Fiordland National Park and Milford Sound aren't used for timber.
If we logged the area, the ecosystem would degrade quickly. Native species would decline, water quality would drop, and the connected landscape that supports so much life would start to break down.
The fact that Fiordland is still here in the condition it's in is a result of decades of protection. Maintaining it takes ongoing effort from the Department of Conservation (DOC), local iwi (Māori tribes), conservation volunteers, businesses, and the visitors who pass through.
What This Means for Visitors
A New Fee for International Visitors
A government-imposed fee for international visitors to the national park is expected to come into effect from next year. The fee will likely be built into the cost of tours, cruises, and other paid activities rather than charged separately.
The money raised will go toward conservation and visitor infrastructure in the national park, including things like additional bathrooms and rubbish bins at key stops along the Milford Road.
The goal is to manage growing visitor numbers in a way that doesn't put extra pressure on the environment.
What We Do at Luxe Tours
At Luxe, we've taken a few practical steps to reduce the impact of our tours. $3 from every ticket sold goes to the Kea Conservation Trust, with our funding directed toward kea education programmes in Fiordland primary schools.
We also partner with Trees for Survival to donate one native tree per van group each day. During peak season, that adds up to around 120 trees a month.
On tours, we provide plant-based drink bottles for guests, use compostable lolly bags, and on our Te Anau tours, we use compostable cups and spoons. Our guides also share information about the local ecosystems and native species throughout the day, because understanding the area is a large part of caring for it.
Should I Take a Helicopter Tour?
We sometimes get asked whether it’s okay to take a helicopter tour, given the emissions involved.
While helicopters do produce emissions, seeing Fiordland from above gives you a perspective on the landscape that's hard to get any other way.
For many visitors, that experience leads to a deeper appreciation of how special Fiordland National Park is. That appreciation often turns into long-term support for the area, whether through donations to conservation, sharing the place with others, or simply caring more about its protection.
The way we see it, a visitor who feels deeply connected to a place is one of the best advocates that place can have.
If a helicopter tour is something you'd love to do, and you feel it would help you connect more deeply with Fiordland, we'd say go for it.
Tips for Minimising Your Footprint
Take Your Rubbish With You
There are no rubbish bins along the Milford Road. You'll need to take all your waste with you and dispose of it once you're back in Te Anau or Queenstown.
A dedicated rubbish bag in your car makes this much easier to manage on a day trip.
Stay on Marked Trails and Viewing Areas
Stick to formed tracks and designated viewing platforms whenever you stop. Walking off-trail can damage sensitive plants and soil that take a long time to recover.
Don't Take Natural Souvenirs
Leave rocks, plants, and other natural items where you find them. Some plants in Fiordland are invasive species being actively managed, and picking them can spread seeds to new areas and cause lasting damage.
Consider taking a Tour
Taking a guided tour from Te Anau or Queenstown rather than driving yourself means less cars on the road and less emissions in the Fiordland area. Plus, you'll benefit from being shown around by a local guide, and hear all about the importance and history of the area.
Clean Your Gear Before Entering Water
If you're fishing or doing any water-based activity, make sure your gear is clean before using it in Fiordland's rivers and lakes. This helps prevent the spread of didymo, an invasive freshwater algae.
DOC's guidance is to check, clean, and dry your gear before heading into Fiordland. If your gear is wet from another waterway, disinfect it with a 10% dishwashing liquid solution (one cup of detergent in five litres of water).
If you're hiking the Milford Track, bring dry boots and clothing. There's a cleaning station at Glade Wharf for trampers who need to disinfect gear before starting.
Use Reusable Items Where You Can
Reusable drink bottles, food containers, and bags help cut down on the amount of waste you'll need to manage during your visit. They also reduce the chance of single-use items being dropped or blowing away in the wind.
Don't Feed or Chase Wildlife
If you see a friendly bird such as a kea, weka, or robin, let them approach you in their own time rather than chasing or trying to get close to them. Getting too close can stress them and disrupt their natural behaviours.
You should also never feed wildlife. Human food makes them sick, and it can also lead to them losing their natural foraging skills or becoming dependent on people.
Choose Operators That Give Back
When you're booking a tour, cruise, or other activity, look into how the operator supports the area they work in. Some companies put significant resources into conservation, and choosing those operators is one of the easiest ways to support the protection of Fiordland National Park.
The fact that Fiordland National Park still exists in such an untouched state is the result of long-term protection and care.
By travelling thoughtfully and following simple practices like staying on marked tracks, taking rubbish with you, respecting wildlife, and supporting operators involved in conservation, your visit can help play a small role in keeping it that way.
Frequently Asked Questions
Is Milford Sound eco-friendly to visit?
Milford Sound is a protected area within Fiordland National Park, and many tourism operators work closely with conservation initiatives and environmental guidelines. However, like any popular destination, visiting still has an environmental impact, which is why responsible travel practices from visitors are important.
What is Leave No Trace travel?
Leave No Trace is a set of outdoor principles designed to reduce human impact on natural environments. In Fiordland, this includes taking rubbish with you, staying on marked tracks, respecting wildlife, and avoiding damage to native plants and waterways.
Can you stay in Milford Sound?
Yes, but accommodation options inside Milford Sound itself are limited. Milford Sound Lodge is the only commercial accommodation provider in Milford Sound, offering chalet accommodation and a rainforest campervan park.
There are also several DOC campsites along the Milford Road between Te Anau and Milford Sound. These are basic campsites suitable for self-contained vehicles and tents, and are bookable through the DOC website.
Many visitors choose to stay in Te Anau or Queenstown and travel to Milford Sound for the day.
