Caves in The South West of Western Australia

Western Australia is home to some of the most spectacular and unique caves in the world. The Margaret River region is particularly renowned for its underground limestone formations, with several popular caves open to the public for exploration.

A cave in Western Australia

These caves offer a glimpse into the fascinating geological history of Western Australia and are a testament to the power and beauty of nature.

Jewel Cave (Augusta), Western Australia

Jewel Cave is one of six caves open to the public in the Augusta-Margaret River region of Western Australia and boasts a stunning range of cave formations.

Jewel Cave

Located at the southern end of Caves Rd, about 40 minutes south of Margaret River and less than 10 minutes north of Augusta, it is well-signed from both Caves Rd and Bussell Hwy.

There are about 250 steps to the lowest point of this cave, but because you will be stopping to take in the amazing cave formations, you have plenty of time to catch your breath.

Jewel Cave has a wide range of cave formations including huge stalactites, stalagmites and columns. Look for the flow stone karri forest and the stunning banded shawls. In places, the cave ceiling is covered with tiny delicate straws and helictites, including an impressive 5.4m long straw.

This tour is fully guided. Bookings can be made on the day, but they get very busy during school holidays when it is best to book online in advance.

Mammoth Cave (Boranup), Western Australia

Mammoth Cave is one of six caves open to the public in the Augusta-Margaret River region of Western Australia and as the name suggests, it is huge!

From Margaret River, follow Caves Rd as it winds its way through the stunning Boranup Forest. You will see the signs to Mammoth Cave, about 15 minutes south of town.

Entry to Mammoth Cave is easier than some of the others as the cave opening is at ground level, but once inside you will be climbing up and down steps as the boardwalk winds its way through the cave. 

Look out for the beautiful orange banded and creamy white shawls and amazing flow stone ‘forest’. There is a display of fossils that have been found in the cave over the years, including the jaw bone of a koala!

This tour is self-guided. Bookings can be made on the day, but they get very busy during school holidays when it is best to book online in advance.

Lake Cave (Boranup), Western Australia

Lake Cave is one of six caves open to the public in the Augusta-Margaret River region of Western Australia and stunningly beautiful.

You will find Lake Cave on Caves Rd, about 20 minutes south of Margaret River

As the name suggests, Lake Cave features a beautiful shimmering lake that reflects the massive columns and suspended tables that hover over the water. 

The entrance to the cave is located in a huge sinkhole, called a doline, with 350 steps to get to the bottom. Once inside the cave there is a flat boardwalk to the end of the small but stunningly beautiful cavern.

A bushfire ripped through the forest above the cave a few years ago and with the vegetation above the cave gone, more rainfall than usual has been seeping down into the cave and replenishing the water levels. Currently, in 2023, the water level in the cave is the highest it has been for many years.

This tour is fully guided. Bookings can be made on the day, but they get very busy during school holidays, when it is best to book online in advance.

Caldargup Cave (Boranup), Western Australia

Caldargup Cave is one of six caves open to the public in the Augusta-Margaret River region of Western Australia and is one of two adventure caves, the other being Giants Cave. It is located on Caves Rd, only 12 minutes south of Margaret River.

Armed with only a head torch and hard hat, this cave provides a real sense of adventure. It may be very dark down there, but the boardwalk is easy to follow.

This cave is very active, meaning there is lots of water seeping down from above, leaving tiny shimmering sparkles all over the cave roof and walls. If you stand very still and quiet you will hear the droplets hitting the lake beneath the boardwalk and feel them landing on you!

The cave decorations may not be as  prolific and varied as some of the other caves, but the sense of adventure makes the experience so worth-while.

This tour is self-guided. Prior bookings are not required for this cave and you can find open times and prices on the Explore Parks website.

Ngilgi Cave (Yalingup), Western Australia

Ngilgi Cave, sometimes known as Yalingup Cave, is one of six caves open to the public in the Augusta-Margaret River region of Western Australia.

It is located just off Caves Rd, ten minutes from Dunsborough and half an hour north of Margaret River.

While there are lots of steps in this cave, you are constantly climbing up and down in short sections so you don’t really notice them, like in some of the other caves.

Ngilgi Cave is known for its stunning shawl formations. Some are almost pure white, while others have beautiful bands of rust and cream. The variation in colours is due to the different minerals that seep down through the rocks above.

This tour is semi guided. Bookings can be made on the day, but they get very busy during school holidays, when it is best to book online in advance.

Giants Cave (Boranup), Western Australia

Giants Cave is one of six caves open to the public in the Augusta-Margaret River region of Western Australia and is one of two adventure caves, the other being Caldargup Cave.

It is located on Caves Rd, 20 minutes south of Margaret River.

No lighting is provided in this cave, but you will be provided with a hard hat, head torch, hand torch and briefing when you buy your ticket.

This tour is self-guided. Prior bookings are not required for this cave and you can find open times and prices on the Explore Parks website.

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