One of the most famous sites in Lombok is Mount Runjani, an active volcano on the island. It is the second highest volcano of those in Indonesia, with only Mount Kerinci on Sumatra being higher. Mount Runjani first erupted in 1847, and its most recent eruption was in May, 2009. Within the crater, also called a caldera, is a lake, named Segara Anak, which means "Child of the Sea". The lake is approximately 200m deep, and contains hot springs within it. The recent eruptions which have taken place have formed a small cone in the center of the lake. The lava from this cone has been flowing into the crater lake in which it sits. This cone has been named Mount Barujari which means "New Finger".
Mount Runjani has become a very important part of the tourist industry in Lombok. The area is now protected by the Gunung Rinjani National Park system. Although there are times when the volcano is too dangerous to climb to the top, it is becoming more and more popular as a destination for those who climb as a sport. However, in order to climb safely, one must be experienced. Although the weather is usually no problem in this area, one must be prepared for storms and lightening which may turn up. Also, though it may be warm when one is starting their climb, the temperature at the summit may near freezing. Proper clothing is a must when making this trek. But it is well worth the trouble when one experiences the view available when they reach the top.
When planning a trip to Lumbok, one should be sure to visit the beautiful beaches, and see the unique flora and fauna. However, most of all, one should be sure to leave time to see Mount Runjani, up close if possible, a sight that will be remembered for a long time to come.