One of thirteen cave divers/explorers records the horrifying audio of the entrance of the Pannikin Plains Cave collapsing due to the sudden, unexpected form of a cyclone above them, with the cave then flooding. All thirteen made it out alive.

One of thirteen cave divers/explorers records the horrifying audio of the entrance of the Pannikin Plains Cave collapsing due to the sudden, unexpected form of a cyclone above them, with the cave then flooding. All thirteen made it out alive.