Coaker's Walk, from the bus-stand, constructed by Lt. Coaker in 1872, is a paved pedestrian path running along the edge of steep slopes on the southern side of Kodai. The walk, winding around Mount Nebo, starts in front of the Van Allen hospital, running parallel to the Van Allen Hospital Road, and joins the main road beside St.Peter's Church, providing a panoramic view of the plains. On a clear day one can view as far as Dolphin's Nose in the south, the valley of the Pambar River in the southeast, Periyakulam town and even the city of Madurai. A fascinating rare phenomenon called the "Brocken spectre" can be witnessed, when a person can see his shadow on the clouds with a rainbow halo. This occurs when the sun is behind the viewer and clouds and mist are to the front. There is an observatory with a telescope halfway along the walk. The entrance fee to the walkway is nominal and it is open all year.