The entirety of Neil Island functions as a tropical nature reserve, surrounded by the rich ecosystems of the Andaman Sea.
* **Marine Ecosystems:** The island is fringed by extensive, living coral reefs teeming with colorful tropical fish, manta rays, and occasionally dugongs (sea cows), which are the state animal of the Andaman and Nicobar Islands. * **Tropical Flora:** The interior is densely covered in tropical greenery, agricultural plantations, and towering Mahua trees along the coastlines. * **Wildlife:** Birdwatching is popular, with endemic species commonly spotted in the island's interior canopy.
