The Bimmah Sinkhole is one of the Sultanate of Oman's geological curiosities. To see it, you have many options. You can go around it following the path that runs along the edge. Then you can go down and swim if you want. But be sure not to forget your swimsuit! Once you’re in the water, some little fish come and tickle your feet.
The Sinkhole's most impressive feature is the color of its turquoise blue water which contrasts with the surrounding red rock. As the site itself is not huge, a little park was built around it and you can stay there for a picnic or to cool off. Located just an hour's drive from Muscat, the Sinkhole can be a little excursion for the day or a stop if you're traveling to Wadi Shab during your stay in Oman.