Mahe's topography is primarily classified as a coastal plain. The terrain is largely flat, with very slight undulations as one moves eastward away from the coast.
* **Highest Point:** Low laterite hills near the eastern border with Kerala, rising to about 15 to 20 meters above sea level. * **Lowest Point:** The Arabian Sea coast at 0 meters. * **Water Bodies:** The Mayyazhi River forms the northern boundary of the main town area and provides a small estuarine ecosystem. * **Coastline:** A short stretch of sandy beaches and rocky outcrops facing the Arabian Sea.