A villa-only resort on an unheard-of beach, where every guest has a private pool and personal butler service, can’t possibly be ethically responsible, right? Not so fast. Look beyond the lauded restaurant and secluded spa, and you’ll find a commitment to local communities and ecosystems, from providing clean drinking water for school children, to protecting the endangered dugong native to the shores of Con Dao. Even the driving range’s golf balls dissolve after being submerged for 48 hours, revealing a nugget of fish food.