The Gedung Ubat or Ammunition Store is believed to have been a storage area for artillery and explosives by the Japanese army during World War II.
The structure is cylindrical in shape with a height of 3.5 meters. It has a cone-shaped roof and a doorway overlooking the sea.
The structure has an interesting design – its wall is made of thick bricks arranged in such a way that there are small holes in between for ventilation.
Gedung Ubat is located along the Labuan Chimney Walking Trail.
It is also near the Tip of Tanjung Kubong, an excellent spot for watching the sunrise.