Hey Saurabh, Coorg s awesome and whatever you have heard is true to the core. ... Dont even have a second thought to visit this marvellous hill station with western ghats all over it. ... You have tadiandamol for Trekking ... Abbey and Chelavara and Iruppu waterfalls for enjoying falls ... You got mercara museum for history ... You have got Tala Cauvery as a birth place of river Cauvery ... You have Mandalpatti for nature view ... You have golden temple for buddhism and architecture .. You have Cauvery Nisargadhama and Dubare Elephant reserve for Wildlife ... You have river Cauvery for the best river rafting experience in south india ... You have raja's seat for sunset .... The best season to visit would be from December to march where the nature will be cool and calm with lovely breeze of winds around .... Happy Travelling !!!
I personally think Winters are the best time. Coorg is a beautiful place with many options for adventures and stay. You can stay in Zostel, if you're traveling on a budget. Coorg also has some monuments and do have the local food.