Built across the Kortalaiyar river, Poondi Reservoir (Sathyamurthy Sagar) is one of the key sources feeding Chennai’s municipal water supply, and its bund-side garden and boating facilities make it a common weekend outing for residents of the northwestern suburbs. Poondi Reservoir sits at an elevation of 64 m and is typically explored in about 2-3 hours. The most favourable months to visit are January, February, March, and June, when conditions are best suited for sightseeing. Nearby points of interest include Poondi Reservoir Main Dam, Poondi Reservoir Viewpoint, and Temple of Sri Poondi Madurai Veeran. Other notable highlights include walking the calm dam top with reservoir views, watching egrets and cormorants near the water edge, and picnicking under shady trees in the dam garden. It falls within Tamil Nadu, Tiruvallur district, and Tamil Nadu, India.
State: Tamil Nadu
Ideal Duration: 2-3 Hours
January, February, March, June
Facilities are very basic — there are no permanent restaurants or clean public restrooms at the site. You will find small tea and snack stalls on the main road leading to the reservoir, but it is advisable to use restrooms in nearby towns like Tiruvallur or Sriperumbudur before arriving, and carry your own packed lunch.
It is about 60–70 km from Chennai, roughly a 1.5 to 2-hour drive via the Chennai–Tiruvallur–Kanchipuram road. Hiring a private cab or a small bus is the most comfortable option for groups, as public buses drop you at the main gate, from where you may need to walk a short distance. The terrain near the viewing point is flat and easy to walk, making it suitable for seniors, but carry your own wheelchair or walking aid if needed.
The best months are from November to February, when the weather is cooler and the reservoir is likely to have more water after the northeast monsoon. Visit early in the morning (around 8–10 AM) to enjoy the calm scenery and birdlife, as afternoons can get quite hot.
Yes, the reservoir area is open to visitors during daylight hours, typically from 8:00 AM to 5:30 PM. There are shaded spots and a few benches near the main viewing point, but it is a quiet, nature-focused destination rather than a developed picnic park, so carry your own water and snacks.
No special permission is required for general sightseeing from the public viewing areas. However, entry to the dam structure itself or the immediate water edge is restricted, and you should always follow the instructions of the local guards. Avoid any activity that could pollute the water.