Hey Surya, There are some offbeat places near Chennai like: 1)Kadapakkam village ( 100KM) 2)Chandragiri ( 150KM) 3)Talakona waterfall ( 220KM) 4)Yelagiri (230KM)
Hi Surya, here is a list of getaways you can head to from Chennai
Pulicat Lake
Nagalapuram Falls
Kanchipuram
Vellore
Nellore All these destination are less than 200km from Chennai.
You can visit 1. Marina beach 2. Kodaikanal (it will soothe your eyes) 3. Nagalapuram camping with waterfall trek
4. water sports at Muttukadu 5.Jagannath Temple
6. Tada waterfall
7. Alamparai fort