The Bimmah Sinkhole, located in Hawiyat Najm Park, actually means “Meteor Fall” in Muscat Oman. Bimah sinkhole is a beautiful natural landmark, the best place to see in Muscat for refreshment on the long coastal road of Oman. This exclusive Bimmah Sinkhole is so exquisite, as the limestone hollow, in Bimmah, boasts the kind of clear waters normally only seen on holiday postcards. It is approximately 50 to 70 meters large, and 20 to 30 meters deep. The crystal-clear waters provide one of the most picturesque swims in Oman.
It formed very close to the sea because of the increased subterranean water flow that occurred down-gradient. The sinkhole was formed with limestone by a collapse of a large cave chamber. However many believed that this sinkhole was formed by a meteorite (“piece of Moon”). However, at the bottom of the sinkhole, one can see deep blue-green water with a heap of rock and remnants of the collapse. When the roof of one of these caverns collapses, the land above it falls in too, leaving giant holes. When groundwater flows through these rocks, it eats away at the rock, leaving behind subterranean holes and caverns.
The government has developed a park around the Bimmah Sinkhole and built a concrete stairway leading to the lake. It’s a refreshing lake to take bath for Locals and tourists. It is well thought, that sinkhole is connected to the 600 m distant sea. Because the top layer of the lake is crystal clear, but at the depth of some 8 m water has a sulphuric taste due to sulfur-oxidizing bacteria and is less clear. Though similar holes engulf residential streets or open up in front of despairing homeowners, the Bimmah sinkhole has long been attracting tourists eager for a picturesque swim.