On December I went to yercaud, is really cool place to chill with friends. We went by bike from bangalore to yercaud. climate is very nice and we enjoyed over there for 2 days. Actually its one day trip, not much to see over there. But best place to relax with friends, hotels & lodges are in very offer able prizes.
Is just only site seeing place, but you will love the hill Station journey. The greenery is awesome and we can have n no of pics while climbing Hill. On the hill station we will find a fort and a temple with lamp house. There only we can find dirt race and few out door games.
Overall if you are good adventurous guys please go over there else dont go.