Bimmah Sinkhole
23°02′10″N 59°04′19″E / 23.03611°N 59.07194°E
Hawiyyat Najm (Arabic: هوية نجم), known as Bimmah Sinkhole in English, is a water-filled depression, structurally a sinkhole, in the limestone of eastern Muscat Governorate in the Sultanate of Oman, very close to the Al Sharqiyah region just off the highway to Sur, few kilometers before Tiwi.