The eastern group includes the principal island of Siantan (on which is situated the main town of Tarempa) and Bajau.

The Anambas archipelago contains a large reserve of natural gas that is exported to countries such as Singapore and Malaysia.

It is located about 150 nautical miles northeast of Singapore and Batam, is a cluster of islets that collectively surround three lagoons, each of which suitable for snorkelling, scubadiving and coral beach activities.

[6] Whilst the majority of the population generates their income from fishing and fishing-related industries, tourism has been gaining traction.

The shipwrecked vessels Seven Skies and Igara attract a variety of indigenous marine life and offer diving opportunities.