A trip to Nagarjunasagar can be done in a day if you travel from Hyderabad. This place is of immense archaeological significance & excavations. This dam was completed in 1966 and is 1 km long. This has 26 gates and this is the third man made lake in the world. Our visit to this place was primarily to capture the sight of water flowing from all the 26 crest gates.
Ethipothala is a mountain stream with 3 water falls. There is a light show in the night which I was told worth watching. A treck to this place and then a visit to the fall is worth the trip.