Also known as Ajwa lake, Sayaji Sarovar located 22 km away from Vadodara, is the main water source that was formed by damming the Surya River and Vaghali Nala. Designed by Shri Jagannath Sadashiv, the work on the scheme was started in 1885 and was completed in 1890. The earthen dam with an area of 190 sq km is 5 km in length and could store water to the height of 212 feet above the sea level. The reservoir is an ideal picnic spot with boating facilities.

Near to the Ajwa lake, there is a beautiful garden that is patterned after the famous Brindavan Gardens of Mysore. The prime attraction here are the illuminated fountains that are operated on every Saturday, Sunday and Monday.