 A ridge of stony hills, 300 feet high on the south side of the entrance, is called Jabal Al 'Odaid; and on the north 
side of the creek, overlooking it, are sand hills known as Niqa Al Maharaf.Niqa Al Maharaf forms the southern extremity of a narrow range of high white sand hills skirting the coast known as Naqiyan, with the northern extremity going by the name Naqiyan Abu Qasbatain.In a 2010 survey of Khawr al Udayd's coastal waters conducted by the Qatar Statistics Authority, it was found that its average depth was and its average pH was 7.93.