Two images of a water run-off channel that drops into the Tawi Atayr sinkhole. The one on the right diffused, because I liked the look when printed. On the left I used a lens that has a slight softness around the edges: not everything needs to be ultra sharp.
Tawi Atayr: A sinkhole located in Al-Qarāʾ Mountains Dhofar.
The name roughly translated from Arabic means the “well of the birds” appropriate because it is populated by many birds whose song can be heard seemingly from all directions, when approaching the area of this sinkhole.
Its surface measurement is approximately 130m in a NE-SW direction and about 90m in NW-SE direction with a vertical depth of around 210m. Halfway down it narrows to an almost circular hole of about 60m in diameter.
Opinions differ as to its formation, either erosion exacerbated by fissures opened when the rock freezes or a collapsed cave system.
At the bottom there is a cave passage in a north-eastern direction, located at groundwater level and half-filled with water. To my knowledge, this passage has not yet been explored, it is possible that it leads to Wadi Darbat and the sea which is only 10km to the south.
David A Lockwood 
I like the one on the right, it looks great! Though, the left has more information. Thank you for posting both!
Thank you for visiting and commenting, much appreciated.
Great photos, David! Is the one on the right the diffused photo? It almost looks like a painting.
Thanks Josh.
Yes it is, just playing with options for possible framed prints. On the right paper & behind glass, you’re right it could almost be mistaken for a watercolour.