Oman: Tawi Attair Sinkhole, at 210 metres, one of the world's deepest, caused by the collapse of an underground cavern, provides nesting places for P

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Oman: Tawi Attair Sinkhole, at 210 metres, one of the world's deepest, caused by the collapse of an underground cavern, provides nesting places for Pale Crag Martins and many other birds.

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Size: 6016px × 4000px
Photo credit: © Peter Michael Rhodes / Alamy / Afripics
License: Royalty Free
Model Released: No

Keywords: arab, countryside, east, geology, gulf, islam, limestone, middle, muslim, nature, state, sultanate