The Sultanate of Oman is located in the southeastern corner of the Arabian Peninsula. It has a coastal line extending almost 1,700 kilometers from the Strait of Hormuz in the North to the borders of the Republic of Yemen, overlooking three seas; the Arabian Gulf, Gulf of Oman and the Arabian Sea. The Sultanate of Oman borders Saudi Arabia and United Arab Emirates (U.A.E.) in the West, the Republic of Yemen in the South, the Strait of Hormuz in the North and the Arabian Sea in the East. Besides, there are a number of scattered Omani islands in the Arabian Sea; the most important are Masirah and Al-Halaniyat.
The total area of the Sultanate of Oman is approximately 309,500 square kilometers. The Sultanate is composed of varying topographic areas consisting of plains, wadis (dry riverbeds) and mountains. The most important area is the plain overlooking the Gulf of Oman and the Arabian Sea with an area of about 3% of the total area. The mountain ranges occupy almost 15% of the total land of Oman and are inhabited by about 5% of the population. The remaining area is mainly wadis and desert (about 82% of the total area). The climate differs from one area to another; it is hot and humid in the coastal areas in summer, hot and dry in the interior with exception of higher mountains and Dhofar Governorate, which enjoy a moderate climate throughout the year.
The Sultanate of Oman is administratively divided into 5 Regions and three governorates with 59 Wilayats. These regions are: Ad Dakhliyah, Ash Sharqiyah, Al Batinah, Adh Dhahirah, and Al Wusta, and the governorates are: Muscat, Dhofar and Musandam Governorates. The regions of Ash Sharqiyah and Al Batinah have each been further subdivided into two, for health administration, giving a total of ten health regions.
(Source: The Ministry of Health Website )