Nusa Lembongan, Indonesia – Five years ago, the beaches on Nusa Lembongan, a paradisal island half an hour’s speedboat ride from Bali, were pockmarked with the kind of rubbish that blights large stretches of Indonesia’s most famous tourist destination.
These days, Nusa Lembongan’s shorelines are squeaky clean and its once heavily-polluted river, home to an extensive system of mangroves, is pristine.
