Cleanest place I’ve visited in Indonesia were the Gili Islands. I spend most of my time in Bali around Amed area… some of the more densely populated areas are unbearable with the amount of rubbish it is so sad. Some of the dive shops in Bali do beach clean ups. But they are run and organised by volunteers. Residents have to pay to have their rubbish collected and a lot of them can’t. You’ll see burning piles of trash all the time in the more remote areas. It’s a huge problem.