One of the problems on the Gili Islands is beach erosion. Beach erosion is defined by the actual removal of sand from a beach to deeper water offshore or alongshore into inlets, tidal shoals and bays. Such erosion can result from any number of factors, including the simple inundation of the land by rising sea levels resulting from the melting of the polar ice caps.

In the last few year there was a lot of beach erosion around the Gili Islands.
Specially the North Coast of the Gili Islands and more actual the East Coasts of the Gili Islands lost a lot of beach in the last couple of years. Meters of beach dissapeard at the last storm in March 2012.Of particular concern is the effect climate change, which not only causes sea levels to rise but also increases the severity and possibly the frequency of harsh storms, has on beach erosion. While sea level rise sets the conditions for landward displacement of the shore, coastal storms supply the energy to do the ‘geologic work’ by moving the sand off and along the beach. Therefore, beaches are greatly influenced by the frequency and magnitude of storms along a particular shoreline.Besides collectively lowering our greenhouse gas emissions substantially, there is little that individuals—let alone coastal landowners—can do to stop beach erosion. Building a bulkhead or seawall along one or a few coastal properties may protect homes from damaging storm waves for a few years, but could end up doing more harm than good. Bulkheads and seawalls may accelerate beach erosion by reflecting wave energy off the facing wall, impacting adjacent property owners as well, adding that such structures along retreating shorelines eventually cause diminished beach width and even loss.

Oceans 5 dive resort is trying to save some beach by replanting trees on the beach. The sand will not move that quick and hopefully the beach erosion doesnt goes that fast as in the past.