Temburong District

Temburong District (), or simply Temburong (), is the easternmost district ("daerah") in Brunei. It is an exclave, as it is separated from the rest of Brunei by Malaysia and Brunei Bay, and is accessible from the mainland via the Temburong Bridge. Bangar is the town and administrative centre of the district. In 2016, Temburong had a population of 10,543.
Geography.
The district borders Brunei Bay to the north and Sarawak, Malaysia to the east, south and west. The area covers .
The Temburong River flows through the district, and the Sungai Pandaruan river forms the western section of the border with Malaysia.
Temburong is divided into five "mukim" (districts):
Brunei's first national park, the Ulu Temburong National Park, is located south of the Temburong district, covering of the Temburong forest. The national park has a scientific research centre facility, the Kuala Belalong Rainforest Field Studies Centre, which is only accessible by boat. 
 of the Kuala Belalong area had been allocated for joint venture research projects conducted by the Universiti Brunei Darussalam, Kuala Belalong Field Studies and the Smithsonian Tropical Research Institute. It is called the "Belalong Rainforest Experience," and is funded by The Hongkong and Shanghai Banking Corporation: Brunei.
An Outward Bound centre can also be found within the national park.
Temburong has of roads connecting Bangar to interior villages. In addition a further of roads connect villages in the interior.
A new roadway connecting the Muara and Temburong districts of Brunei was completed in March 2020. of this roadway crosses the Brunei Bay.
Demographics.
According to the 2019 mid-year population estimates by the Department of Planning and Statistics, the population of Temburong District was estimated to be 11,400, accounting for 2.5% of the country's total population. The estimated breakdown of the population are as follow:
Eco-tourism in Temburong district.
Pristine forest still covers most of the district. This leads to the intensive development of the eco-tourism industry in Temburong district. Eco-Tourism promotion events such as "Cuti-Cuti Temburong" ('Temburong holidays') was launched at the end of 2008 by the local tourism group known as "Kenali Negara Kitani" (KNK) ('Know Your Country') to encourage locals and tourists from foreign countries to travel to the Temburong district. The promotion event is a kick-start of the Heart of Borneo project at Brunei vicinity.
Education.
Sultan Hassan Secondary School is the district's only secondary school and is located in Bangar. There are also 13 primary schools spread across the district since one of them was shut down.
Health.
In 1987 the $10 million Pengiran Isteri Hajah Mariam Hospital opened, providing 50 beds and a variety of medical services. A number of village clinics also exist.
Security.
The district has an army presence at Bangar Camp. There is one main police headquarters in Bangar and numerous police posts around the district.
Use by SAF.
The SAF Commandos regularly conducts jungle training here. A Singapore army camp is also located in between Kampung Negalang and the other town that is called the Lakiun.
Recreation.
Popular sports in Temburong include football, top-spinning, netball and sepak takraw.