You feel greatest divine experience as well as one of the toughest Mountain trekking in Tamil Nadu, while trekking you will find total 7 mountains you need to climb, approximately to and fro of 12 Km distance you need to cover, the significance of 7 mountains is 7 Chakras (7 wheels) in your body namely
Mooladhara
Swadhishtana
Manipooraga
Anagadha
Vishukthi
Agya
and Sahasrara
As per Shaiva Sidhdhantha, if all these 7 Chakras functions well, all illness in your body automatically gets cured without any external influence, many Shiva devotees believes strongly.
When you climb the first mountain which is one the toughest among the 7 Mountains by the distance and irregular climbing steps, soon after reaching the first mountain one Ganapathy Temple is there, after that Kaithatti Sunai will be there, the significance is when you clap your hands water will come from a bamboo stick, people used to keep this water as a sacred one.
Similarly 5th Mountain is the Veeboodhi mountain which means sacred ashes, then you will have a water pond almost 0 to 10 deg Celsius, where the devotees take bath and finally you reach the Mountain peak, at the entrance you will find lot of Trishuls made out of Iron rods are Fixed, then one Ganapathy Stone statue is there and next one Ambigai Goddess statue is there then a small cave is there in this 4 Lingam ( Shiva ) will be there, significance of this one is Pancha Linga in the form of Pancha Bootham, 5 Lingams, namely Land Lingam, Water Lingam, Fire Lingam, Air lingam, are inside and the fifth one is (Akash) Sky Lingam. If you are fortunate you can find a sidhdhar doing pooja for 5 Lingams.
Night times almost the temperature will be less than 10 Degrees, normally no one allowed to stay at night here. during this trekking you can find wild animals like Elephant in group, Wild jungle Bull, Bear, etc.,
Its a fantastic experience everyone must try it out at least once in there life span.
Om Namashivaya.