Nam Hinboun on the east end of Tham Khong Lor, Phou Hin Boun National Protected Area, Khammouane Province, Laos.
<a href="//commons.wikimedia.org/wiki/User:Tango7174" title="User:Tango7174">Tango7174</a>
CC BY-SA 4.0
<span class="int-own-work" lang="en">Own work</span>