Jenolan Caves - Nettle Cave

The Nettle Cave lies between the Grand Arch and the Devils Coach House. The cave takes its name from the nettles which grow near its entrance (note that raised walkways protect visitors from their stings); an upper part of this cave can be seen from inside the Devil's Coach House. Originally shown as a guided tour, the cave was closed to the public in 1932. In December 2006, this cave was re-opened to the public as a self-guided audio tour, combined with the adjoining Devil's Coach House. The Nettle Cave hosts "Crayfish backs", stromatolites shaped by cyanobacteria, light and wind. They are estimated to be at least 20,000 years old.

Jenolan Caves - Nettle Cave Jenolan Caves - Nettle Cave Jenolan Caves - Nettle Cave Jenolan Caves - Nettle Cave
 
Jenolan Caves - Nettle Cave Jenolan Caves - Nettle Cave Jenolan Caves - Nettle Cave Jenolan Caves - Nettle Cave
 
Jenolan Caves - Nettle Cave Jenolan Caves - Nettle Cave Jenolan Caves - Nettle Cave Jenolan Caves - Nettle Cave

Source: Wikipedia