Trash on the reef side of the islands comes in with the tides..plastic bottles, slippers, and a strange mix of stuff, not so much dumped. Its an endless process of cleaning. I have seen too many times local folks, and I am sure some tourist dump their lunch plates, drinks..etc into the water after eating. Trash on the mainland side is alot of times folks trying to put trash somewhere because they dont want to or cant pay dump fees.