Sulawesi

This orchid-shaped island is home to Toraja funeral culture, Bunaken marine park, and some of the most unique wildlife in Indonesia, featuring 127 endemic mammal species—outpacing the combined total of #2 Java and #3 Sumatra—while hosting just 800,000 annual visitors. Its dive tourism contributes $45 million yearly, 20% more than #8 Lombok's marine activities.