Mount Rinjani Trek
Mount Rinjani (Gunung Rinjani) can be an active volcano and a park in Lombok then one with the largest mountains in Indonesia. Over a clear day you can observe breathtaking views from the summit. The trek towards the summit typically takes around three days and highlights add the crater lake Segara Anak, as well as the natural hot springs there.
At 3,726 m, Rinjani will be the second highest volcano in Indonesia, second simply to Mount Kerinci on Sumatra, and it dominates the landscape in the relatively small island of Lombok.
Within its huge 50 km² caldera sits the crater lake Segara Anak (Child with the Sea). Eruptions inside the caldera have formed a brand new small cone called appropriately enough, Gunung Barujari (New-finger Mountain).
The mountain and its satellites make up the Mount Rinjani Park officially Taman Nasional Gunung Rinjani with 41,000 hectares from the park boundaries as well as a further 66,000 hectares of protected forest outside.
In 2008, the Indonesian government proposed to UNESCO that Mount Rinjani be one of earth's official geoparks. If it was approved by UNESCO, Mount Rinjani would get to be the first such geological park in Indonesia.
This can be a very active volcano. The oldest recorded historical eruption was at 1847. Earlier than this was obviously a very remote region indeed, which means the not enough records. However, approximately in 1257 the volcano erupted so violently that it is shape changed to what it appears as if today as well as the event is considered to get caused the onset of the small Ice Age. There was a spate of activity from 1994 to 1995 which ended in the further development of the crater cone Gunung Baru, since renamed Gunung Barujari (New-finger Mountain).
On 27 April 2009 Gunung Barujari became active again with that activity continuing to May 2009. The summit ascent routes were closed at that time as the eruptions intensified with plumes of smoke and ash up to 8,000 m. A Volcanic Explosivity Index (VEI):2 rating was issued for the activity between May and December 2009. The ascent routes re-opened on September 14th 2009 but hiking routes into the crater lake were deemed unsafe and remained closed.
In February 2010 observers with the Gunung Rinjani Observation Post detected a smoke plume that rose 100 m from your volcano. The game at the begining of 2010 is centred about Gunung Barujari. On May 1st 2010 a column of smoke was again observed rising from Rinjani issuing eruptions 1,300-1,600 metres tall with thick brown color and strong pressure. On May 5th 2010 any ash plume rose to a altitude of 5.5 km (18,000 ft) and drifted 150 km NW. Accordingly the midst of Volcanology and Geological Hazard Mitigation advised that intermittent activity could produce ash plumes to 1,500 m (5,000 ft) across the caldera. In relation to this The Volcanic Explosivity Index Alert Level was raised to 2 using a recommendation there be no activity within a radius of 4 km through the eruption at Gunung Barujari.
Rinjani erupted three further times on 23 May 2010 with activity continuing until 24 May 2010. In accordance with the volcano's official monitoring agency, ash from Mount Barujari was reported as rising around 2 km in to the atmosphere and damaged crops. Lava flowed in the caldera lake, pushing its temperature up from 21°C to 35°C, while smoke spread 12 km. The volcano did not directly threaten villagers during one of the eruptive activity noisy . 2010 however usage of some chapters of the mountain was officially closed or restricted at sometimes.
After these events, the next great deal of major activity has took place November 2015. The November 2015 eruptions have forced closure of Ngurah Rai airport in Bali, and disrupted international flights around Bali.
The lower and mid amount mountain can be heavily forested. Above the tree line though the slopes are barren and rugged scree slopes and volcanic rock. The views in the crater lake are very breath-taking from your caldera rim, as is the sunrise. In the absolute peak you can view Bali on the west and Sumbawa on the east.
The lower and middle elevation slopes are densely forested with typical tropical species. Fig trees are particularly apparent. Casuarina forest (cemara) gets control of higher and eventually these fall down to an alpine flora higher than the treeline.
Lombok is east of the Wallacean Line and some Australian bird species are therefore apparent. These include a great deal of sulphur crested cockatoos and green hanging parrots. Bird our life is generally challenging to observe here though due to the density from the forest.
The familiar long-tailed grey macaque (the Bali temple monkey) is normal up to the crater rim. Also the rare ebony leaf monkey inhabit these forests. Rusa deer and muntjacs are more often heard than seen.
Rinjani is most beneficial climbed throughout the April-November dry season. You are able to climb through the rainy season too but treks will often be cancelled at short notice when the rain is heavy.
It gets snowy for the mountain above 2,000 m and nears freezing at the summit. Warm garments are an absolute must.
Most visitors arrive via the village of Senaru (600 m), on the northern side of the mountain and thus closer to the key resort parts of the west coast including Senggigi. One other possible access point is Sembalun Lawang (1,150 m), around the eastern side, that is more detailed the summit. Both villages are accessed in the main north coast road.