Who thinks that Indonesia has a giant rock as high as 1002 meters above sea level. Its name is Bukit Kelam which is located in Sintang Regency, West Kalimantan. Bukit Kelam is the largest boulder in the world. What makes it interesting is that the hill is not from the ground, but it is from a large rock. It is named dark because the rock is dark black. The hill which is about 23 kilometers from the center of Sintang Regency can be reached about 30 to 40 minutes until the valley of the hill.
Bukit Kelam is one of tourism destinations that must be visited, particularly for natural lovers of tourism and rock climbing. There are flora and fauna, unique natural scenery, and caves. Of course, the rock wall for international scale climbing is found in Bukit Kelam. One of the floras only exists in Sintang Hill and it is not in the other hemisphere, namely the endemic plant, nephentes clipeata (Kantung Semar). It is reddish color, this Kantung Semar grows in crevices of steep cliffs on the Bukit Kelam rocks, at 600 to 800 meters high above sea level. It is unique due to existing at the top part and it is like a funnel, and at the bottom, it is round like a ball. Besides Kantung Semar, Bukit Kelam is also as a home for black orchids.
There is also a waterfall in Bukit Kelam. The water in this giant rock area is a source of people life, a source of bottled water and even a source of electric power generator used by the people of Sintang. In addition, there are also caves for caving lovers. The most popular caves are the swallow cave and the bat cave. To see the beauty wonder of Bukit Kelam Dark, you must climb to the top. For those who are not used to climbing, it takes 3 to 4 hours to reach the top of the hill. With a slope of 15 to 40 degrees, there is an iron ladder to facilitate climbing. Puncak Bukit Kelam is the best place to see the sunrise and sunset.