Basically, it is called water village because the houses, building and other public facilities are built in the bodies of water.
It is recorded that Kampong Ayer or Water Village in Brunei is made up of small villages linked together by more than 29,140 meters of foot-bridges, consisting of over 4200 structures including homes, mosques, restaurants, shops, schools, and a hospital. The 36 kilometers of boardwalks connect the buildings.