The affiliated wilayats at Al Al Batinah South Governorate are Rustaq, Al Awabi, Nakhl, Wadi al Maawil, Barka and Musannah. The centre of the governorate is the Wilayat of Rostaq.
The Wilayat of Rustaq borders on the Wilayat of al Awabi the the east, Ibri is to the west, al Musana'ah to the north and the slopes of al Jabal al Akhdhar to the south. It is 150 Kilometres from the Governorate of Muscat and its population of 67,641 lives in Rustaq itself and its 170 villages.
It has two niyabats - al Hawqain and Wadi Bani Hinai - and numerous enchanting wadis where the visitor can stroll among springs and lush palm groves. Among the best known of these wadis are Wadi Sahtan, Wadi Bani Ghafir, Wadi Bani Awf, Wadi al Haimli and Wadi Hajir Bani Umar. The wilayat has 200 aflaj including Falaj al Maisar -the oldest - Falaj al Sayighi, and Falaj al Kamil, which is a truly brilliant feat of engineering.