Kelong (sometimes spelt Kellong) is a Malay word describing a form of offshore platform built predominantly with wood, which can be found in waters off Malaysia, the Philippines and Indonesia. Only a handful remain around Singapore due to rapid urbanisation.
Kelongs are built by fishermen primarily for fishing purposes, although larger structures can also function as dwellings for them and their families. They are built without the need for nails, using rattan to bind tree trunks and wooden planks together. Anchored into the sea bed using wooden piles of about 20 metres in length and driven about six metres into the sea, they are usually sited in shallow water, although some can be found in deeper waters. Some Kelongs are less isolated and are connected to land via a wooden gangway. Other variants of Kelongs can be mobile, or may involve a large groups of Kelongs joined together into a massive offshore community.