You have to off road two kilometers followed by a hike of another two kilometers to reach this place. The last 200 meters of the hike is on a an extremely steep slope, diffodiff to climb. We unfortunately did not carry any water, we were panting all the way up. The spot is the usual good Friday hiking point for the nearby churches to commomerate Christ's crucification. There is a cross installed on top the bigger rocks. From the top, you can view criss crossing mountains of Western ghats in all directions. The tall rocks looks like forehead of a person. The name "thirunetti" means holy forehead, probably named due to religious reasons. You can climb on few of the rocks but then the largest one of the all is not climbable (at least from our experience). One side of the mountain top has a steep drop as well. You don't want to get in near to that. Aside from the mountain, there is a small restaurant running there, supplying some basic snacks and drinks. They also provide off road vehicles as there was on monster looking one parked nearby.
Visited on Nov 2018