The southern side of Kodai has a steep cliffy pathway for the trespassers raised by LT. Coaker in 1872 and is located 500 meters from the bus stand. The walkway circumnavigating around Mount Nebo begins parallel towards the Van Allen hospital andjoins the main road abutting St.Peters Church giving a panoramic view of the plains. On a sunny day, it becomes much easier to have a vivid and clear view of Dolphin’s nose in the south, the valley of the Pambar River in the south east, Periakulam town and the prosperous city of Madurai as well. The awesome spectacle of Brocken Specter can be noticed at the time one sees his own shadow on the clouds with a rainbow halo. This happens when the clouds and mist are in front of the viewer with the sun behind. The observatory is situated along half the way towards the walkway and the walkway is open throughout the year and the entrance fee is much more economical as well.