Waterways play a vital role in the geography and historical development of Dimapur.
* **Dhansiri River:** This major tributary of the Brahmaputra River flows directly through the city, serving as a historical boundary and a vital water source, though it faces modern challenges with urban pollution. * **Chathe River:** Flowing near the outskirts (around Chumukedima), it is a picturesque waterway popular for weekend picnics and fishing. * **Triple Falls:** Located in Seithekima village on the outskirts of Dimapur, this three-tier waterfall cascades into a natural pool, making it a beautiful natural attraction during the monsoon and post-monsoon seasons.

