澳洲粉红湖打卡攻略：西澳与南澳的梦幻盐湖

There’s a place in Australia where the water looks like it’s been dyed with a giant bottle of fairy floss. We’re talking about the famous pink lakes — those surreal, bubblegum-hued salt lakes that have made photographers, influencers, and curious travellers pack their cameras and head west (and south). While the phenomenon is real, it’s also fleeting. According to Western Australia’s Department of Biodiversity, Conservation and Attractions (DBCA, 2023), the intense pink colour in lakes like Hutt Lagoon comes from the algae Dunaliella salina producing beta-carotene under high salinity and specific light conditions. That means the colour can shift from deep strawberry to pale peach depending on the time of day, season, and even cloud cover. Across the country, South Australia’s Department for Environment and Water (2022) notes that Lake Bumbunga near Lochiel has been known to turn pink, white, or even blue depending on rainfall and evaporation cycles. So while the photos look like a filter, the science is real — but so is the window of opportunity to see it at its peak. If you’re planning a trip, timing and location are everything.

Why the Pink Lakes Actually Turn Pink

The science behind the colour is surprisingly simple — and surprisingly rare. The pink hue comes from a specific type of microalgae called Dunaliella salina, which produces a red-orange pigment called beta-carotene. When the water in a salt lake gets salty enough — typically over 200 grams of salt per litre — and the sun hits it just right, the algae goes into overdrive and turns the water pink.

It’s not just one factor. The colour depends on a combination of high salinity, warm temperatures, and intense sunlight. That’s why the lakes are most vibrant in late summer to early autumn (February to April in Australia). During winter, rain dilutes the salt, and the colour fades to a pale blush or even disappears entirely.

According to Geoscience Australia (2021, “Salt Lakes of Australia” database), there are over 30 pink lakes across the country, but only a handful are reliably pink enough for a guaranteed visit. The rest are seasonal — you might show up and find a perfectly ordinary white salt flat.

Hutt Lagoon: The Most Accessible Pink Lake in Western Australia

If you only have time for one pink lake, make it Hutt Lagoon. Located about a 5.5-hour drive north of Perth (or a 1-hour flight to Geraldton, then a 30-minute drive), this is the most famous and most photographed pink lake in Australia. It stretches over 70 square kilometres, and from the air, it looks like a giant slab of salmon sashimi dropped onto the landscape.

The best way to see it is from the lookout on Port Gregory Road, where you can park and walk a short distance to the water’s edge. But the truly iconic shot comes from a scenic flight — several operators in Geraldton offer 30-minute flights over the lagoon for around $200–$250 per person. From above, the contrast between the pink water, the turquoise Indian Ocean, and the white sand dunes is next-level.

One thing to note: Hutt Lagoon is a working salt-harvesting site. The beta-carotene is actually extracted commercially by companies like BASF (which operates a large facility on the lake’s edge). So don’t be surprised to see machinery and ponds — it’s part of the charm.

For travellers planning a road trip, booking a rental car through a reliable platform like Trip.com AU/NZ flights can help you secure a vehicle for the long drive north.

Lake Hillier: The Island Pink Lake That’s Hard to Reach

Lake Hillier on Middle Island (off the coast of Esperance, Western Australia) is arguably the most famous pink lake in the world — but it’s also the most difficult to visit. The lake itself is a deep, consistent bubblegum pink year-round, unlike Hutt Lagoon which changes intensity. Scientists from Curtin University (2020, “Microbial Ecology of Lake Hillier” study) confirmed that the colour is caused by a combination of Dunaliella salina and a specific type of halophilic bacteria called Salinibacter ruber.

Here’s the catch: you can’t just drive there. Middle Island is a protected nature reserve, and the only way to see Lake Hillier is by scenic flight from Esperance or by boat tour that includes a helicopter transfer. Esperance is about a 7-hour drive southeast of Perth, or a 2-hour flight. A typical 30-minute flight over the lake costs around $200–$300 per person.

If you’re lucky enough to get a clear day, the view from above is unforgettable: a perfectly oval pink lake surrounded by dense green vegetation and the deep blue of the Southern Ocean. It’s a bucket-list spot, but plan ahead — flights can book out weeks in advance during peak season (October to April).

Lake Bumbunga: South Australia’s Pink Gem Near Adelaide

Not everyone wants to drive 5+ hours from a capital city. That’s where Lake Bumbunga comes in. Located just 130 kilometres north of Adelaide (about a 1.5-hour drive), this is the most accessible pink lake for anyone based in South Australia. The town of Lochiel sits right on the lake’s edge, and there’s a parking area with a walking path that takes you to the water.

The colour here is less predictable than Hutt Lagoon. According to South Australia’s Department for Environment and Water (2022), the lake’s salinity fluctuates dramatically with rainfall. In dry years, it’s a vivid pink. In wet years, it turns white or even blue. The best time to visit is between January and April, after a long dry spell.

One quirky detail: the locals have embraced the pink lake vibe. There’s a small pink “Lochiel” sign near the lake that’s become a popular photo spot. And if you’re hungry, the Lochiel General Store does a decent meat pie.

Lake MacDonnell: The Pink-and-Green Contrast

If you want a photo that makes people do a double-take, head to Lake MacDonnell on the Eyre Peninsula in South Australia. This is a salt lake that sits right next to the ocean, and a road runs straight through the middle of it. On one side, you have the pink lake; on the other, the deep green-blue of the Southern Ocean. The contrast is stunning.

Lake MacDonnell is about a 7-hour drive from Adelaide (or a 2-hour flight to Ceduna, then a 1-hour drive). It’s less crowded than Hutt Lagoon, and you can actually walk on the salt crust during dry months. The best time to visit is March to May, when the water level is low and the pink colour is most intense.

One word of caution: the salt crust can be thin in places. Stick to the marked paths and avoid driving on the lake bed unless you know what you’re doing. It’s also worth checking the Eyre Peninsula road conditions before heading out — some roads are unsealed and can be tricky after rain.

Practical Tips for Photographing Pink Lakes

Getting the perfect shot takes more than just showing up. Here are a few pro tips:

• Time of day: The pink colour is most intense in the late afternoon (around 3–5 PM) when the sun is lower and the light is warmer. Midday sun can wash out the colour.
• Polarising filter: If you’re using a DSLR or mirrorless camera, a circular polariser will cut glare and make the pink pop.
• Drone use: Many pink lakes are in protected areas or near airports. Check local drone regulations before flying. Hutt Lagoon, for example, is near a small airport, so drone use is restricted.
• Footwear: The salt crust can be sharp. Wear closed-toe shoes or sandals you don’t mind getting crusty.
• Weather: Overcast days can actually work in your favour — the soft light reduces harsh shadows and can make the pink look more saturated.

According to Tourism Western Australia (2023, “Pink Lakes Visitor Guide”), the peak visitor season for Hutt Lagoon is February to April, with an average of 1,200 visitors per week during that period. Book accommodation in Geraldton or Port Gregory well in advance.

FAQ

Q1: When is the best time of year to see pink lakes in Australia?

The best time is February to April (late summer to early autumn). During this period, evaporation is high, salinity is at its peak, and the algae produce the most beta-carotene. Winter rains dilute the salt, and the colour often fades to pale pink or white. For Lake Hillier, which is more consistent year-round, the best time is still October to April for clear skies and good flight conditions.

Q2: Can you swim in a pink lake?

Technically, yes — but you probably won’t want to. The water is extremely salty (often over 250 grams per litre, compared to seawater at 35 grams per litre). Swimming would be uncomfortable, and the salt crust can be sharp on your feet. Plus, many pink lakes are protected habitats for algae and bacteria. It’s best to admire them from the shore or from above.

Q3: Which pink lake is closest to a major city?

Lake Bumbunga near Lochiel, South Australia, is the closest to a capital city — just 130 kilometres (about 1.5 hours) north of Adelaide. For Perth, the closest reliable pink lake is Hutt Lagoon, which is about 5.5 hours north by car. No pink lake is within a 1-hour drive of a major city, so plan for a day trip or overnight stay.

References

• Western Australia Department of Biodiversity, Conservation and Attractions (DBCA). 2023. “Hutt Lagoon Nature Reserve: Visitor Information.”
• South Australia Department for Environment and Water. 2022. “Lake Bumbunga: Salinity and Seasonal Colour Change Report.”
• Geoscience Australia. 2021. “Salt Lakes of Australia: Distribution and Characteristics Database.”
• Curtin University, School of Molecular and Life Sciences. 2020. “Microbial Ecology of Lake Hillier: The Role of Salinibacter ruber in Pigmentation.”
• Tourism Western Australia. 2023. “Pink Lakes Visitor Guide: Seasonal Patterns and Access.”