It was enlarged through a land reclamation process during the late 1970s,[1] and is home to the Pulau Sudong Airport.

[2] As with all other military installations in Singapore, the entire live-firing zone is strictly off limits to all civilians at all times of the day and night.

[3] The only exceptions to this are for workers who are contracted by MINDEF to perform maintenance on the island's area calibration facilities.

The island's airport and dock are maintained by the Singapore Armed Forces (SAF),[4] with most areas covered by dense vegetation - the island is a wildlife haven for migratory birds and plants alike.

[5] Prior to the airstrip being built, it was home to around 400 permanent inhabitants that lived in kampongs.