Green walls
Hanging plants.
Michele Lunam — CC BY-SA 4.0 · User:Satellizer — CC BY-SA 4.0 · Michele Lunam — CC BY-SA 4.0 · Michele Lunam — CC BY-SA 4.0
Umpherston Sinkhole is a sunken garden in a large limestone sinkhole in Mount Gambier, South Australia, about 3 km from the city centre in a straight line. Mount Gambier is known for its volcanic and limestone features, including the Blue Lake, caves and sinkholes. The sinkhole formed when the roof of a limestone cave collapsed, leaving a deep hollow open to the sky. James Umpherston turned it into a sunken garden in the 19th century, and it carries his name as well as the Aboriginal name Balumbul. Steps lead down to the floor, where colourful flower beds, neat lawns and trees spread out while climbing plants hang down the tall limestone walls like green curtains. From the rim it looks like a garden hidden underground. Entry is free, the garden is lit in the evening, and possums come out at dusk. It pairs easily with the city's Blue Lake, a short drive away.
Hanging plants.
Bright colours.
At dusk.
Mount Gambier, South Australia
Yes.
The Blue Lake.