Umpherston Sinkhole, the second largest city in South Australia, Mount Gambier, like Blue Lake (The Blue Lake), is a famous attraction for Mount Gambier.
Umpherston Sinkhole, also known as the Sag Garden (The Sunken Garden), was once a cave made of limestone dissolution and weathering. The top of the cave eventually collapsed as a result of weathered erosion, making it a depression that is now seen. Now, the soil at the top of the cave falls below, providing an excellent natural environment for the sunken garden.
James Amber Don (James Umpherston) first beautified it in 1884, and Umpherston Sinkhole has been open to the outside world since then, especially from dusk to night, as possum risks looking for food in this bright garden. Geographical and environmental factors created caves in the area, and Amberstone was inspired to shape Umpherston Sinkhole..
Umpherston Sinkhole is beautiful and mysterious, the most famous plant in the garden is its roses, tourists can choose to have a picnic here, the center of the garden has a downward inclined step trail, flowers on both sides, especially like the wedding scene. It has to be mentioned that, Umpherston Sinkhole has also contributed great value in scientific and geological research.