Poondi, a small village, is situated at a distance about 60 km. from Chennai. Frequent buses are available from Chennai and Tiruvallur to reach this place.
'Poondi' the name, it is said, is derived from Poondu in Tamil, the shrub which was once abundant in this place. Poondi has acquired a significant importance as it has a huge reservoir called Sathyamurthy Sagar. The area of the reservoir is about 121/2 square miles. The water from this reservoir goes to the Red Hills take from where the Madras city receives water supply after undergoing necessary proceeding. This reservoir and its suburbs make an interesting picnic spot.