Macgregor Falls

Macgregor Falls is an amazing waterfall that has worn away in the middle of a cave. The Natural Bridge is a naturally formed rock arch over Cave Creek, a tributary of the Nerang River. It was formed from a waterfall which undercut a cave beneath the waterfall and dug a pothole on top, until the two joined and the creek flowed through the cave, leaving an arch across the front. As a bonus the cave is home to a colony of glow worms and there are night tours into the cave. (Springbrook National Park, Queensland, Australia)