Marine debris is often carried by winds and ocean currents to shallow bays and coves, where it commonly settles on nearby reefs. This can cause significant damage to coral structures and other reef associated organisms, having severe consequences on the health of these reefs. The beautiful beaches that reefs help form are a popular attraction for many tourists, often receiving hundreds of thousands of visitors each year. Tourists that use these beaches may leave litter which is often collected by the ocean during high tide, and deposited on nearby reefs. As the tide starts to go out, trash items may instead be deposited onto the beach. Organised beach cleans are a great way to easily collect large quantities of trash that is deposited as the tide retreats as well as any litter that accumulates from tourist activity. Collecting trash from the beach prevents it from being carried out to nearby reefs during successive tide cycles.