Drips forming the limestone formations in the Imperial Cave at <a href="https://en.wikipedia.org/wiki/Jenolan_Caves" class="extiw" title="w:Jenolan Caves">Jenolan Caves</a>, NSW, Australia.
<a href="//commons.wikimedia.org/wiki/User:99of9" title="User:99of9">Toby Hudson</a>
CC BY-SA 3.0
<span class="int-own-work" lang="en">Own work</span>