Despite its small size, Diu has unique ecological features.
* **Fudam Bird Sanctuary**: A wetland area located near Diu town, it is a crucial habitat for migratory birds, including flamingos, spoonbills, and various species of waders. * **Hoka Trees (Hyphaene dichotoma)**: Diu is one of the very few places in India where the Hoka tree—a branching palm species native to the Arabian Peninsula and East Africa—grows abundantly. * **Coastal Ecosystems**: The island features a mix of rocky outcrops, sandy beaches, and tidal mudflats that support rich marine life.