Segara Anak Crater Lake is a lake on mount Rinjani crater located about 2000 m above sea level. Segare anak literally means child of sea, to reach it we need to climb the Mountain that will take around 9-12 hours through Sembalun or Senaru starting point. It is a challenge for those who love trekking and climbing. This place is a pilgrimage Mecca for Sasak wetu telu community and Balinese Hindu people that frequently climb the mountain to hold Mulang pekelem ceremony, a ritual that always be held every year that remain practiced until nowadays.
Sembalun Crater Rim is part of mount Rinjani crater rim that located in east side of the mountain. It is located around 2,639 m above sea level and very popular as the shortest route to reach the top from east starting point of Sembalun lawang village. It can be reached in 6-9 hours and then you will spend the first night in tent before heading to the summit early morning in the next day of Rinjani trekking trip.
Rinjani summit 3,726 m above sea level is the third highest point in Indonesia after Jaya wijaya 4,800 m in Papua and Kerinci 3,805 m in Sumatera and the second highest volcano after Kerinci. Being there we will soon realize Lombok is a small Island with a massive volcano. We will be able to see every part of the Island from the top especially at dawn, that is way always be planned to arrive there before sunrise on the trekking trip where the visibility are still very clear.
Senaru crater rim is located in the west side of Mount Rinjani crater, it is around 2,645 m above sea level and forming one of the best view points to see Rinjani crater lake with its small volcanic cone in the middle of the crater. It can be reached in 6 – 8 hours trek from Senaru starting point in the North Slope of the mountain. Starting from this side, you will pass mostly shady trek of lush tropical forest along the way until you reach 2,000 m above sea level where the trek change dominated by savanna.
Mount Rinjani is a volcano that forming the second highest in Indonesia after mount Kerinci in Sumatra. It is one of at least 129 active volcanoes that present in Indonesian archipelago and rises to 3,726 m above sea level and has a large caldera
approximately 6×8,5 kilometers which is partially filled by the oval-shaped crater lake known as Segara anak. The lake is around 2,000 m above sea level and estimated to be 230 m deep. In the east part of the caldera grow a small cone called Gunung baru jari that has its own caldera of 170×200 m and around 2,375 m above sea level in height. Mount Rinjani is one of the volcanoes of the Sunda arc trench system forming part of the pacific ring of fire, a section of fault lines stretching from the western hemisphere through Japan and south east Asia. The sunda arc is home to some of the world’s most dangerous and explosive volcanoes. The eruption of nearby mount Tambora on Sumbawa is known for the most violent eruption in recorded history on 15 April 1815, with the scale 7 on the
volcanic explosivity index. The first historical eruption of mount Rinjani occurred in September 1847, while the most recent eruption was in May 2010 and the most recent significant eruptions occurred during a spate of activity from 1994-1995 which
resulted in the further development of gunung baru jari. The historical eruption at mount Rinjani dating back to 1847 have been restricted to Baru jari cone and consist of moderate explosive activity and occasional lava flows that have entered
Segara anak lake. The eruptive of Rinjani prior to 1847 is not available as the Island of Lombok is in a location that remained very remote to the record keeping of the era. The mount Rinjani and the caldera are protected by the Gunung
Rinjani Nationa Park established in 1997. It is getting increasingly popular with trekkers able to visit the rim to make their way into the caldera or even to make the more arduous climb
to the highest point. The park is popular with the mountain climbs and trekking and represents an important nature reserve and water catchment area. The park is
officially 41,330 hectares within the park boundaries and includes a further 66,000 of protected forest outside. Mount Rinjani has obtained the World Legacy Award
from International Conservation and traveler in 2004 and was a finalist for tourism for tomorrow award in 2005 and 2008 from the World Travel Tourism Council (WTTC.)