The Kamaraj Sagar Dam (also known as Sandynalla reservoir) is in the Nilgiris district of Tamil Nadu state in India. It is located at a distance of 10 km from the Ooty bus stand. It is a picnic spot and a film shooting spot on the slopes of the Wenlock Downs. The dam's storage capacity is 26.6 million cubic meters(MCM) or 0.94 tmc ft.
The various tourist activities the dam include fishing and studying nature and environment.