Pongok Island in the context of "Bangka Island"

The Bangka Belitung Islands (Indonesian: Kepulauan Bangka Belitung) is a province of Indonesia. Situated off the southeastern coast of Sumatra, the province comprises two main land masses — the islands of Bangka and Belitung — and numerous smaller islands. Bangka Belitung is bordered by the Bangka Strait to the west, the Natuna Sea to the north, the Java Sea is to the south and the Karimata Strait to the east; the two principal islands are separated by the Gaspar Strait, within which lie lesser islands such as Lepar, Pongok (or Liak) and Mendanau.

The province's capital and largest city is Pangkalpinang. The province shares maritime borders with South Sumatra to the west, Riau Islands to the north, Banten, the Special Capital Region of Jakarta, West Java, and Central Java to the south, and West Kalimantan to the east. Bangka Belitung covers a land area of 16,690.13 km (6,444.10 sq mi) and had a population of 1,455,678 according to the 2020 census; the official estimate as at mid 2024 was 1,531,530 (comprising 786,010 males and 745,520 females).

Lepar (Indonesian: Pulau Lepar) is an island in Indonesia, located off the southeastern coast of Bangka. Administratively part of South Bangka in Bangka Belitung province, it is the third-largest island in the province after its much larger namesakes Bangka and Belitung, with an area of 169 square km. Lepar sits in the Gaspar Strait which separates the two larger islands. It stretches about 22 km east–west and 17 km north–south, with the towns of Tanjunglabu, Tanjungsangkar and Penutuk being the main population centers. It is governed as its own district of Lepar Pongok, which used to include a nearby, medium-sized island of Pongok until 2012 when it separated as its own district of Pongok Islands.