Umpherston Sinkhole in South Australia 2024-2025
A luxurious garden in an unlikely place
Best time: December–February
Umpherston Sinkhole was once a cave formed by dissolved limestone, but the roof of the cave collapsed, and a sinkhole was formed. Topsoil has created the perfect environment for the sunken garden, which was founded by James Umpherston in the mid-1860’s.
Now, the sunken garden is an unusually green and beautiful space with fountains, rows and terraces of perfectly matched flowers and greenery covering its floor. Operating as a public park, the Umpherston Sinkhole is perfect for picnics and barbecues.
The place comes alive after dusk with possums, as they use the floodlit gardens to feed.
The best time to visit the Umpherston Sinkhole is during Australia's summer from December to February when hydrangeas are in full bloom.
Practical info
When is the best time to visit Umpherston Sinkhole?
In Australia's summer from December to February, the sunken garden at Umpherston Sinkhole blooms with hydrangeas. Visitors can enjoy perfectly matched rows and terraces of greenery and flowers on the floor. The park is also open at night, allowing visitors to spot possums while exploring the garden.
What is the history behind Umpherston Sinkhole?
Umpherston Sinkhole is a historic landmark created in mid-1860s by James Umpherston, who turned a garden with ferns and exotic plants into a sunken garden in a sinkhole. Today, it remains a beautiful park and a fusion of natural rock formations with beautifully crafted gardens. Its public access celebrates its unique and historical significance.
How did Umpherston Sinkhole transform into a sunken garden?
Umpherston Sinkhole naturally formed as a sinkhole. James Umpherston transformed it into a sunken garden by planting exotic plants, creating a beautiful park. It remains a lush green space with neat grass lawns, an exceptional location for picnics, barbecues or tranquil experiences. As a South Australian attraction, it is a must-see for all visitors.
Where is Umpherston Sinkhole located in South Australia?
Located in Mount Gambier, Umpherston Sinkhole is only a 4-hour drive from Adelaide. Mount Gambier also boasts volcanic lakes, cave gardens, pristine beaches and other attractions, making it an excellent destination for exploring. Perfect for group outings, picnics and calming moments, the park is situated on Jubilee Highway East.
What kind of wildlife can visitors expect to see at Umpherston Sinkhole?
Aside from possums that visitors can find feeding in the floodlit garden after dusk, Umpherston Sinkhole features kookaburras that perch on trees, creating a serene atmosphere with their laughter. Native Australian bird species, including white-browed babblers, superb blue wrens and honeyeaters can also be found within the vicinity.
