Umpherston Sinkhole

Umpherston Sinkhole, also known as the Sunken Garden, is a stunning collapsed limestone cave that has been transformed into a lush, terraced garden. Located in Mount Gambier, this unique geological wonder offers a surreal experience as you descend into a verdant oasis filled with ferns, flowers, and towering trees. It's a peaceful escape and a photographer's dream, especially as dusk falls when possums come out for feeding.

Highlights & What to See

• The Sunken Garden: Wander through the beautifully landscaped terraces, where the sinkhole's walls are draped with ivy and the floor is a carpet of green lawns and vibrant flowers.
• Possum Feeding: At dusk, you can watch (and feed with care) the friendly brush-tailed possums that inhabit the garden – a delightful experience for kids and adults alike.
• Geological Formation: Marvel at the limestone cliffs and the sinkhole's dramatic depth, a prime example of the region's karst landscape.
• Historic Features: Look for remnants of the original 1880s garden design, including stone steps and pathways that add to the site's charm.

Suggested Time to Spend

Allocate 30 minutes to an hour to explore the sinkhole at a leisurely pace. If you plan to visit at dusk for possum feeding, aim to arrive about 30 minutes before sunset. Combine this with other Mount Gambier attractions like the Blue Lake for a half-day outing.

Nearby Areas Worth Combining

• Blue Lake: Mount Gambier's iconic volcanic crater lake, known for its vibrant blue colour from November to March.
• Mount Gambier City Centre: Explore local cafes, galleries, and the historic Town Hall.
• Engelbrecht Cave: Another limestone cave in the area, offering guided tours through its chambers.
• Valley Lake Conservation Park: A scenic park with walking trails, a lake, and abundant birdlife.
• Port MacDonnell: A coastal town about 30 minutes south, known for its lobster fishing and rugged coastline.

Please check official sources for current details.