Mahameru, is a famous name from the top of Mount Sumeru with height ± 3676 meters above sea level (mdpl), placing himself as the highest mountain in Java. Mount Semeru is one of the volcanoes are still active in East Java, located between the administrative area of Malang Regency and Lumajang with geographical position between 7 ° 51 '- 8 ° 11' south latitude, 112 ° 47 '- 113 ° 10' East Longitude .
The peak of Mount Semeru (Mahameru) can be seen clearly from the city of Malang, and some other places with a perfect cone shape, but the actual conditions at the top of a large dome-shaped roll with every ridge field. Jonggring Saloko crater in 1913 and 1946 years to break the edge of the crater caused lava flows PASIRIAN goto the southern region, and Lumajang Candipura.
Mount Semeru is the youngest of the Mountain Pot but has developed into a large strato-volcano separate. Volcanic activity of material released in the form of ash eruption, lava blocks and bombs parents of young lava, volcanic lava material mixed with rain water or river water, eruption that caused the avalanche cones, slow growth / grain gradually from lava and several miscarriages of hot lava.
Geological formation of Mount Semeru volcano is the result of a young quarter, with rock types consist of: gray sand / Tuf and Vulcan intermedian to base with Vulcan and physiographic associations Regosol andosof gray and gray with ash parent materials / sand dab Tuf intermedian to base. Geological structures that do not produce solid rock and not strong bond granulated, easily eroded rainy season.
Type of soil is Regosol, a land with little segabungan profile development with little profile development with shallow solum, thin on the parent solid material. In general, other high places, areas along the travel route from start Ranu Pane (2200 m above sea level) until the peak Semeru has a relatively cool temperatures. The average temperature ranges between 30C-80C at night and early morning, whereas during the day ranged from 00C-120C sometimes occurs in several regions of hail that occurred during the rainy season changes to summer and vice versa.
The cold temperatures along the route of this trip is not solely caused by the air still but is supported by the wind that blew into the area became increasingly cold air. Based on the topography of the macro region, the wind forming an erratic pattern in the sense of domination hard to determine wind direction is always changing. Topographic forms encircled by high cliffs around 200-500 meters really can withstand the current allows the wind speed, but because many cracks / hallway wall, then the wind flow is not detained speed even faster.

Topography and Climate
Form of a hollow topography often wind cycle. The wind was blowing the region is closely related to the wind patterns around it, which is southeast wind or wind Gending, Wind northeast and northwest wind.
Wind speed which occur quite strong between 8-30 knots, where as the season winds uprooted many trees are found. The wind was blowing between December - February, and to prevent the danger it is recommended that tourists / visitors do not climb the mountain semeru.
It is not uncommon when there is fog along the route climbing trip in the morning and afternoon till evening. Ranu area Kumbolo and KALIMATI as a place to stay / night is always covered with a thick kabul.
The presence of fog occurs didua place other than the cold air temperature (air condensation processes), as well as the wind is blowing area with a fog. Special Ranu Kumbolo area with a lake that is wide enough to support the formation of haze due to water evaporation process.
In general, climatic conditions in the area and surrounding mountain Semeru including climate type B (Schmidt & Ferguson) with rainfall between 927 mm - 5498 mm per year and 136 days of rainy days / year. The rainy season falls around the month of November-April. The temperature at the peak of Mount Semeru in the month - the month ranged from 2 degrees Celsius - 4 degrees Celsius.

Vegetation and Biodiversity
Vegetation in the area surrounding Mount Sumeru and included in the Sub Zone Alfin in dominir by the Mountain Pine tree species (Casuarina Junghuhniana), Jumuju (Podocarpus sp), Mentigi (Vacinium varingifolium), Kemplangdingan (Albazialophanta) and Acacia (Accasia decurrens).
As for the plants is dominated by Alang - alang (Imperata cylindrica), Kirinyuh (Euphatorium odoratum), Tembelekan (Lantana camara), Harendong (Melastomo malabathicum) and white Edelwiss (Anaphalis javanica). On the slope - the steep slope to the top of Semeru Arcopodo found some ferns species such as Volubilis Gleichenia, Gleichenia longisulus and several orchid species endemic to living in the area south of Sumeru.
Around Mount Semeru at an altitude of more than 3100 meters above sea level, the condition is rock, sand and ashes without vegetsi at all. Animal life found around Mount Sumeru is very limited in terms of number of species maupuan consisting of several species of birds, primates and other wildlife, including Tiger Beetle (Panthera pardus), Deer (Muntiacus muntjak), Kancil (Tragulus javanica) and other - Other. In Ranu there Kumbolo Belibis (Anas superciliosa) wild living.

Climbing Routes
In the months school holidays, climbing to Mount Semeru would rame. Ranu Kumbolo is becoming a favorite among climbers as well as a temporary camp for a rest before heading to the top will change to a new township climbers from various directions. Towards the beginning of the region to pedakian we can use the two lines from the SENDURO - Lumajang and Mixed-Malang.

Line-Lumajang SENDURO
The line was relatively quiet for the climb as they are not so well known among climbers, transportation access is also still found a little difficult to get to Ranu Pani from SENDURO. If we pass this point we can enjoy the forest forests are still relatively natural and Hindu religious temple in the SENDURO which is the largest temple in Java. From Ranupani SENDURO to take about 2-3 hours drive motor. From after arriving in the same way Ranupani Mixed-Malang route.

Line Mixed - Malang
The climb from the Malang is a favorite route for transportation access and availability of easy accommodation can. Poor city is a city that has many beautiful natural scenery and tourist destination within easy reach. City dubbed as a comfortable place to learn this allows us to visit one of nature lovers college located in the city.

From Kota Malang continue to travel on to the Terminal via ARJOSARI Mixed with Angkot for + 30 minutes. In Mixed we can directly take the jeep with tariffs ranging from 15,000 to 25,000, - or the truck that led to the Ranupani. Here we can also spend the night in the owner of the jeep when we benighted and continued the next day. Logistics can be in here as well as telephone facilities also have a lot.
From the Mixed journey continues into the past Ranu Gubuklakah committee, which is an apple-producing villages and Ngadas, Family Place live perch and Jemplang-Bantengan (Here the view of Mount Bromo to stretch the carpet seems like when the rain started early musin or will berahkir). Mixed trip to Ranu committee takes about 4-5 hours.

Ranu Pani (2000 m asl) is a hamlet motorized travel Last post by 279 ha area. This place is the Mountain Climber Inspection Post and the existing facilities of Climber Pondok, Pondok Research, Information Center and the Office Resort, Wisma Cinta Alam, Wisma guests and Building Management.
Amid the township is Lake Ranu Pani (Ranu) Pani is a tourist area of mengasikan. Fishing activity and walking around the lake is an experience that impressed. Of Ranu Pani when we walked along the straight path will arrive at Ranu Regulo. (15 minutes). Ranu Pani in the post we can also make the licensing process but it's better than the office park permits Bromo Tengger Semeru National Park, Jl. Raden Intan No. 6 Malang 65100 tel. 0341 to 491,828.
Of Ranu Pani trip down the paved road continues along the ½ mile into the climb the path leading to Ranu Kumbolo (2390 m above sea level). Passing through the area of agricultural land rose Watu Rejeng travel at the start. Travel around a closed road by fallen trees / fallen into the street so we occasionally crawl under fallen vegetation. Nuance travel often found people who are looking for firewood and birds travel along the route.
Distance from Ranu Pani to Watu Rejeng about 5 km with 90 minutes temput time. Then to reach Ranu Kumbolo takes 90 minutes with a distance of 5 km. and in Ranu Kumbolo we can spend the night. The total journey from Rani Ke Pani Ranu Kumbolo 3-4 hours with a distance of about 10 Km.
Ranu Kumbolo (2390 m above sea level) is a valley and there are lakes / ranu the extent of 12 ha. This resort area which overlooks and upland ecosystems of the original. Panorama of nature in the morning will be even more amazing that the sun rises in the gap - the gap of the hill shows colors - colors that make the surrounding lake reddish color and yellow, plus water vapor above the lake as if out of the lake. The facilities here are a Climber and MCK hut for rest and cooking and camping. In this area there are relics of ancient inscriptions allegedly a legacy dn Majapahit Kingdom.

Of Ranu Kumbolo we can go to Little Pangonan which is a name for the prairie area located in the valley of Mount Ayek-Ayek located not far from Ranu Kumbolo. The origin of the local community because this area is similar to pasture cattle (Pangonan). The attractiveness of this area is relatively flat ground in the midst of the surrounding area with a configuration of barren hills are characterized as a type of grass native ecosystems, thereby providing its own attraction to visit.
After the trip Kumbolo Ranu forwarded to KALIMATI. Rise through the Love, which is a considerable rise and continued squeezing force through Savana Oro-oro Ombo (30 minutes). This area is a vast meadow + 100 Ha is in a valley surrounded by barren hills with native ecosystem types of grass plants, located at the end of the cliffs that surround Ranu Kumbolo united. This prairie like a bowl with a carpet of yellow grass, sometimes - sometimes in some places rain water submerged.
Travel forwarded to Cemoro Cage takes approximately 3-4 hours and continued climbing past the Meadow-Pot and into the KALIMATI. Here we can spend the night with climbers hut facilities and needs water to be drawn from memesak Source Mani (15 Minutes). Travel from Ranu Kumbolo to KALIMATI sekitas takes 4-5 hours hiking.
After the KALIMATI us to Arcopodo (2-3 hours). Arcopodo are regions that are dilereng peak of Mount Sumeru and can be used for tent mendirika Mahameru gumn peak. The morning after the night of KALIMATI or Arcopodo perjalanana continue our ascent to the summit through Jonggring Saloko with sandy soil with a slope of nearly 60 to 70 degrees. Special vigilance is required in this field over as many stones - stones that landslide by the wind or climbers above us. Arcopodo trip to the Peak takes 3-4 hours hiking.

Peak or Peak Jonggring Mahameru Saloko is unique in every 10 - 15 minutes once spouted ash and volcanic rock that preceded bursts of black despair soaring jet into the sky as if - will cover the entire top. The temperature at the top Mahameru sometimes 0-4 degrees Celsius, accompanied by thick fog and wind storms.