Illikkal Kallu or Illikkal Boulder is a pristine viewpoint located at 4000ft ASL in Kottayam District. It is one of the highest peak in the Western ghats. Illikal Kallu is a rock situated above Illikal Mala. The thing that makes this rock unique is that half of the rock has fallen off, and only the other half remains. The nearest city is Teekoy. Illikkalkallu can be easily sighted from any part of Kottayam. This place is only a developing tourist spot and a good destination for a day trip if one is from Central Kerala or visiting Vagamon. Until recently it has been one of those far-away places. To reach the hill top, before the road was made good, one has to trek up three kilometers. After the road was paved till the pre-summit and commissioned, Illikkal Kallu is drawing a large number of visitors. It is viable now, to reach the foot of the hill even on two-wheelers.The road is very steep with full of sharp curves, and zigzags The drive up hill is intense and colourful. Illickal Kallu comprises of three boulders, each with different shape. One of them resembles a mushroom and is known as Kuda Kallu (umbrella shaped rock). The second has a small hunch on the sides and is referred to as Koonu Kallu (hunch back rock) . There is a small pathway between the rocks called Naraka Palam (Hell bridge). The adventurous ones can opt this steep downhill ledge trail which is a narrow half-foot wide slippery stretch that takes them across to the stunning rock fixture.