Sinkhole Tour Local Omanis still believe the Bimmah Sinkhole Oman was created by a falling star. And even though geologists have confirmed it was caused by erosion. book now to visit this beautiful place our Muscat Advanced Tourism Co Tour guides ready for you any time to pickup you from Airport or any places we have 4WD cars. By Depart Muscat continue drive to Sink hole visit sink hole and white sands beach and then continue drive to wadi Shab visit wadi Shab you can do hiking and swimming and relaxing there and you can had lunch their at local restaurant in tiwi then after lunch continue drive to wadi tiwi photo stop than continue drive back to Muscat.