Mount Semeru

Mount Semeru or Sumeru is the highest volcano in Java, with its peak Mahameru, 3676 meters above sea level (masl). The crater at the summit of Mount Semeru Saloko Jonggring known. Semeru has Hill dipterocarp forest, dipterocarp forest Upper Montane Forest, and Forest Ericaceous or mountain forest.

The position of this mountain is located between the administrative area of Malang Regency and Lumajang, with geographical position between 8 ° 06 'latitude and 120 ° 55' east longitude. In 1913 and 1946 Crater Jonggring Saloka have dome with a height of 3744.8 M until end November 1973. On the south, the dome is broken edge of the crater caused lava flows towards the south side of the covering area and Candipuro Pronojiwo in Lumajang.

It takes approximately four days to climb the peak of Mount Semeru round-trip. To climb the mountain semeru can be reached via the town of Malang or Lumajang. From the city terminal unfortunate we ride public transportation to the village Tumpang. Connected again with a jeep or truck there is lots of vegetables in the back of the terminal market Tumpang to Post Ranu Pani. Using a vegetable truck or jeep journey starts from Tumpang to Ranu Pani, the last village at the foot semeru.

Having arrived at the gate "welcome", note continues to the left toward the hill, do not follow the broad road toward the farm population. In addition to the usual route passed the climbers, there is also a shortcut that is usually used by local climbers, this path is very steep. Initial lane ramps, down a hillside dominated by reed plants. There are no signs pointing toward the street, but there are signs at every 100m distance measure. There are many fallen trees and branches above the head. After walking about 5 km down a hillside overgrown with Edelweiss, and will arrive at Watu Rejeng. Here there are steep stone is very beautiful. Very beautiful scenery to the valley and the hills, and is overgrown with fir and pine forest. Sometimes smoke can be seen from the top semeru. To reach Ranu Kumbolo still have to travel about 4.5 km.

In Ranu Kumbolo to set up a tent. There is also a hikers hut (shelter). There is a lake with water that is clean and has beautiful scenery, especially in the morning to watch the sunrise on the sidelines of hill. There are many fish, sometimes wild grouse. Ranu Kumbolo located at an altitude of 2400 m with an area of 14 ha. From Ranu Kumbolo should prepare as much water as possible. Leaving Ranu Kumbolo then climb the steep hill, with beautiful views over the lake behind. In front of the hill lies a vast prairie called the oro-oro ombo. Oro-oro ombo surrounded by hills and mountains with beautiful views, wide meadows with pine-covered slopes of Europe. From behind the Mt. Kepolo looked peak Mt. Semeru wedus smoke spewing trash.


Further into the Pine forests where birds and deer sometimes encountered. This area is called Cemoro Cage. Post Kalimati located at an altitude 2700 m, here to set up a tent to rest. Post this form of extensive grasslands on the edge of pine forest, so many available branches to build a fire. There is a spring water source Mani, to the west (right) tracing Kalimati forest edges with a distance of 1 hour round trip. In Kalimati and in Arcopodo numerous mountain rats.

To go Arcopodo turn left (East), walk about 500 meters, then turn right (south) down the little meadow Kalimati. Arcopodo is 1 hour from Kalimati through pine forests which are very steep, with soils prone to landslides and dusty. Can we also camped at Arcopodo, but less stable soil conditions and frequent landslides. We recommend using goggles and cover your nose because a lot of fly ash. Arcopodo located at an altitude of 2.900m, Arcopodo is the last area of vegetation on Mount Semeru, the rest will pass through the dunes.

From Arcopodo to the top of Semeru takes 3-4 hours, past the dunes are very steep and easily degenerate. As a guide trip, at this point there are also several small triangular red flag. All luggage should stay in Arcopodo or in Kalimati. Climbing to the summit made the early morning at around 2:00 am from Arcopodo.

At the peak of Mount Semeru (Peak Mahameru) climbers are advised not to crater Jonggring Saloko, was also banned from climbing from the south side, because of the poisonous gas and lava flows. Mahameru dipuncak temperature range 40-10 degrees Celsius, at the height of the dry season minus 0 degree Celsius, and ice crystals found. The weather is often foggy, especially at lunch, afternoon and evening. The wind was blowing hard, the month of December to January is often a storm.

Gembel wedus eruption every 15-30 minutes at the peak of Mount Semeru is still active. In November 1997 Gn.Semeru erupted as much as 2990 times. At noon the wind direction to the summit, to avoid it coming during the day at the peak, due to toxic gases and the eruption leads to the summit.


The eruption of white smoke, gray to black with a height of 300-800 meters eruption. The material that comes out at every eruption of ash, sand, gravel, stones and even hot fire that is very dangerous if the climber is too close. In early 1994 hot lava running down the southern slope Gn.Semeru and asked several casualties, hot views of the river winding towards the sea has become a very interesting spectacle.

The mountain is included in the area of Bromo Tengger Semeru National Park. The park consists of mountains and valleys covering an area of 50273.3 hectares. There are several mountains inside the caldera Gn.Tengger among others; Gn.Bromo (2.392m), Mt. Batok (2.470m) Gn.Kursi (2.581 m) Gn.Watangan (2.662m) Gn.Widodaren (2.650m). There are four lakes (ranu): Ranu Pani, Ranu Regulo, Ranu Kumbolo, Ranu Darungan.

Flora in the Region of Mount Semeru, but many diverse types dominated by pine trees, acacia, pine, and the type Jamuju. As for the plants under dominated by Kirinyuh, reed, tembelekan, harendong and white Edelwiss, Edelwiss are numerous in the slopes toward the summit Semeru. And also found some orchid species endemic to living in the vicinity of South Semeru.

Many fauna that inhabit the mountain Sumeru, among others: Tiger beetles, leaf monkey, civet, Deer, Mouse Deer, etc.. While in there Kumbolo Ranu surviving wild grouse.
At noon the wind cendurung north toward the peak carrying poisonous gas from the crater Jonggring Saloka.

The climb should be done during the dry season ie June, July, August, and September. Should not climb in the wet season because of frequent storms and landslides.