Skift recently came out with a piece about how Palau is trying to make itself a pristine ecotourism destination for the upscale travel market, for example with a recent law limiting foreigners in investing in luxury tourism projects with their own infrastructure but also providing tax breaks and exemptions. They're also actively working to limit lower-end package tourism. More details here: https://skift.com/2018/07/24/palau-tests-the-waters-of-luxury-tourism/