The Caves, Caverns and Sinkholes (CCS) geocaching series brings to your attention the various features of the limestone coast, and beyond. These karst are formed by erosion and dissolution of the limestone. Some of these features that contain water can be scuba dived with the appropriate qualifications.
There are two scuba dive cave sites at this location: Nettlebed Cave, and Mud Hole.
According to CDAA, Nettlebed Cave was named by Adelaide-based cave diver, Grant Pearce, after he and his diving partner, Chris Murphy, discovered it on 27/01/1990. They had laboured to remove hundreds of limestone stones which choked the south-eastern end of the popular diving doline known as 5L97 (Mud Hole), and their efforts revealed the presence of a body-sized puddle of dark, crystal-clear water which quickly dropped away under the wall.
CEGSA Cave Reference: 5L290
On the southern side of this sinkhole is Mud Hole, which is another scuba diving site. A flooded passage leads into a low silty chamber which pinches off 17 m below the surface.
CEGSA Cave Reference: 5L97
This geocache is hidden high in a tree, and a ladder was used in its placement.
