Australia's first and only underwater winery is hiding in WA

Underwater wine: how it works

It may be situated among Western Australia’s famed Margaret River wineries, but Subsea Estate doesn’t resemble your typical vineyard. Instead of unfolding across verdant hills, its cellar door can be found off the coast near the town of Augusta, where the Southern and Indian oceans meet.

The winery is hidden underwater off WA’s coast. (Image: Ryan Murphy)

A 20-metre dive below the ocean’s surface, the 413-hectare estate comprises specially crafted wine barrels anchored to the sea floor. It’s an intricately designed production process that is painstakingly adhered to by the team at Subsea, made up of leading wine pioneers from both Australia and abroad. But why? And what is the result?

The technique was first introduced by French company Winereef , which has spent over 17 years perfecting its world-first subsea winemaking operation. The concept posits that the ocean’s current and natural sway stirs the wine and keeps the yeast in suspension, which creates a secondary fermentation process.

Subsea Estate in Augusta, Western Australia

The wine barrels are secured to the sea floor by specialist divers.

Hydrostatic pressure, the weight produced by the water column pressing down on an object due to gravity, allows the yeast to produce flavour notes not available on land.

But it doesn’t stop there, because the ocean’s energy is constantly changing, and each batch produced is completely unique. The wines all have their own character, touched by Mother Nature in a different way and offering the truest expression of each season.

How to experience it for yourself

If you’re intrigued, you’re not the only one. Subsea Estate’s innovative winemaking process has attracted attention from across the country – which is why its cellar door is open to the public seven days a week. And no, you won’t be pairing your wine with a scuba suit.

The Subsea cellar door sits on Augusta Boat Harbour. (Image: Lauren Trickett)

Sitting pretty back on land in Augusta Boat Harbour, Subsea Estate invites guests to sip its one-of-a-kind creations with views of the ocean that nurtured them. While walk-ins are welcome, the best way to explore Subsea’s range is with a guided experience. Join a member of the team for a 90-minute Subsea Estate & Rare Foods Abalone and Wine Tour.

That’s right – not only is Subsea home to some of the world’s most innovative wines, it’s also in one of Australia’s top seaside towns for seafood. Your tour starts in the on-site abalone facility, where you’ll witness firsthand how these premium seafood delicacies are prepared for export. Guests can get up close to the tanks and even hold a live abalone if they wish.

Ocean-stirred wines are paired with fresh abalone. (Image: Lauren Trickett)

From there, you’ll be led to Subsea’s cellar door, where you can watch local fishermen return with their catch across Flinders Bay from the sunny deck. Not only will your host walk you through the entire winemaking process, but you’ll enjoy the results firsthand – paired perfectly with the fresh abalone from earlier.

The details

Subsea Estate is located in the town of Augusta, around a 3.5-hour drive south of Perth. The cellar door is open from Monday to Sunday, 9am–4pm. Bookings for the Subsea Estate & Rare Foods Abalone and Wine Tour are essential. The experience is priced at $89 per person and can accommodate groups of up to 15 people. While the tour allows for up to 1.5 hours, guests are encouraged to linger for as long as they please.

WA might be enormous, but the right insider knowledge brings its mysteries a whole lot closer.

“Western Australia is a land of record-breakers,” says Carolyn Tipper, a Travel Director working on AAT Kings Western Australia tours. “It has the second-longest fault line, the second-largest meteorite crater, the second-fastest flowing river—it just keeps surprising you. And every area has its charm.”

From tropics to deserts, Australia’s largest state is a land of extremes. You can’t see all of Western Australia in a lifetime, but with the right guide, you can discover its hidden pockets of magic.

Carolyn wishes to reach her guests’ hearts. “I want them to enjoy and be in awe,” she says. “I want them to have the holiday of a lifetime.”

1. Mimbi Caves

You wouldn’t expect a Great Barrier Reef in the outback – but that’s what you’ll find at Mimbi Caves. Once part of a 350-million-year-old reef, these caves hold marine fossils, ancient Indigenous rock art, and Dreamtime stories shared by a Gooniyandi guide.

“That’s when the real connection happens,” says Carolyn, who has taken guests through on the AAT Kings Wonders of the West Coast and Kimberley tour . “When guests connect, not just with the land, but with the people who have called it home for tens of thousands of years.”

Eye-level view of traveller exploring Mimbi Caves. — Walk through ancient limestone passages. (Image: Tourism Western Australia)

2. Kalbarri National Park

Nothing prepares you for the Kalbarri Skywalk: a 25-metre platform jutting over Murchison Gorge, 100 metres above the red cliffs and river below. From July to October, join the AAT Kings Untamed Pilbara and West Coast tour to see over 1000 wildflower species paint the park, and listen as an Indigenous guide shares their uses, bush foods and medicine plants.

“I want our guests to have an emotional experience,” says Carolyn. “It’s not just about seeing the land, it’s about stepping into the stories.”

An aerial view of the Kalbarri Skywalk, one of the secret places in Western Australia, with visitors on the edge. — Stand on the Kalbarri Skywalk in Western Australia. (Image: Tourism Western Australia)

3. Hamelin Bay Wines

Margaret River isn’t just a top wine region – it’s a winner in every category. Where the Indian and Southern Oceans collide, granite cliffs rise, limestone caves sprawl and Karri forests tower. It almost distracts from the world-class Cabernet Sauvignon and Chardonnay.

Almost.

Out of over 100 cellar doors, AAT Kings pick Hamelin Bay Wines as a favourite. Hosted tastings of small-batch wines on the Western Wonderland tour end with a group meal. The menu shifting with the seasons.

“Get off the beaten track to one of WA’s most relaxed venues for some amazing red and white signature wines,” explains Carolyn, “accompanied with upmarket pub food.”

Spectacular views.

A person raising a glass of Chardonnay against a glowing Western Australia sunset. — Sip world-class wines at Hamelin Bay in Western Australia. (Image: Getty)

4. Wildflower Guided Walk, Kings Park

Western Australia is home to 12,000 native plant species – 3000 bloom in Kings Park’s Botanic Garden. Stroll past Kangaroo Paw, Banksia and blooms from the Goldfields, Stirling Ranges and Kimberley. “The diversity of Western Australia is immense,” says Carolyn, who leads guests through on the South Western Escape tour .

Couple enjoying the view from the Lotterywest Federation walkway at Kings Park and Botanical Garden. — Wander among thousands of native plant species. (Image: Tourism Western Australia)

5. Hoochery Distillery

Did you know that between Kununurra and Emma Gorge lies the state’s oldest continuously operating distillery? Well, the oldest legal one. Set on a family farm, Hoochery Distillery was hand-built using materials found on the property, conjuring up award-winning rum from local sugarcane, wet season rainwater and yeast.

Today, visitors can sample a hearty nip of rum, along with whiskies and gins – all crafted using traditional, labour-intensive methods. It’s the ideal way to soak up the ‘spirit’ of the Kimberley on the AAT Kings’ Untamed Kimberley tour .

People enjoying a rum tasting at one of the secret places in Western Australia. — Sample award-winning rum. (Image: Tourism Western Australia)

6. Geraldton

The wildflowers of the Midwest will make your heart blossom. In Geraldton, the Helen Ansell Art Gallery brings the region’s botanicals to life in vivid colour and intricate detail. In nearby Mullewa, wander bushland trails lined with everlastings and native blooms. Further afield, Coalseam Conservation Park bursts into carpets of pink, white, and yellow each spring. Do it all on the Wildflower Wanderer tour with AAT Kings.

woman walking through Wildflowers, Coalseam Conservation Park — Chase vibrant wildflower trails. (Image: Tourism Western Australia)

7. El Questro

Wake up after a night under the stars at Emma Gorge Resort, ready to explore the mighty beauty of the El Questro Wilderness Park. With deep gorges, thermal springs, and cascading waterfalls, time slows here.

Join the AAT Kings’ Wonders of the West Coast and Kimberley tour to drift through Chamberlain Gorge, where sheer sandstone walls glow burnt orange in the sun, archer fish flick at the surface, and rock wallabies peer down from ledges above. Then, step into Zebedee Springs, a secret oasis of warm, crystal-clear pools among prehistoric Livistona palms – a moment of pure, wild stillness.

Emma Gorge Resort at El Questro. — Wake to adventure at Emma Gorge Resort. (Image: Tourism Western Australia)

8. Lake Argyle

Once vast cattle country, Lake Argyle now sprawls like an inland sea – Western Australia’s largest freshwater lake, created by the damming of the Ord River. Scattered with over 70 islands, its glassy waters teem with life, like freshwater crocodiles, barramundi, bony bream, sleepy cod and over 240 bird species. That’s nearly a third of Australia’s avian population.

Glide across the lake’s surface on a cruise as part of AAT Kings’ Untamed Kimberley tour , where the silence is only broken by the splash of fish and the call of birds. For Carolyn, this place is a perfect example of how WA’s landscapes surprise visitors. “Lake Argyle is a big puddle of water that became a game-changer,” she says. “Seeing it from a boat, coach, and plane is mind-blowing. It puts time, isolation and the sheer scale into perspective.”

Aerial View of Triple J Tours on the Ord River, near Kununurra. — Glide past islands on Western Australia’s largest freshwater lake. (Image: Western Australia)

Discover more of Western Australia’s hidden gems and book your tour at aatkings.com.

Australia’s first and only underwater winery is hiding in Margaret River

This is wine redefined, from the sea floor to your glass.