Gunung Baru Jari, Rinjani eruption, 12 Oktober 2015. (photo: apink alkaf)

About Rinjani Lombok

At 3,726 m, Rinjani is the second highest volcano in Indonesia, second only to Mount Kerinci on Sumatra, and it dominates the landscape of the relatively small island of Lombok.

Within its huge 50 km² caldera sits the crater lake Segara Anak (Child of the Sea). Eruptions within the caldera have formed a new small cone called appropriately enough, Gunung Baru (New Mountain). Segara Anak has a natural hot spring.

The mountain and its satellites form the Mount Rinjani National Park (Taman Nasional Gunung Rinjani) – officially 41,000 hectares within the park boundaries and a further 66,000 hectares of protected forest outside.

In 2008, the Indonesian government proposed to UNESCO that Mount Rinjani be one of the world’s official geoparks. If this was approved by UNESCO, Mount Rinjani would become the first such geological park in Indonesia.

Segara Anak Lake, when Gunung Baru Jari Rinjani eruption, 12 Okktober 2015. (photo: Apink Alkaff)

Segara Anak Lake, when Gunung Baru Jari Rinjani eruption, 12 Okktober 2015. (photo: Apink Alkaff)

History

The oldest recorded historical eruption was in 1847. Previous to that this was a very remote region indeed, hence the lack of records.

There was a spate of activity from 1994 to 1995 which resulted in the further growth of the crater cone Gunung Baru, since renamed Gunung Barujari (Finger Mountain).

On 27 April 2009 Gunung Barujari became active again with that activity continuing through to May 2009. The summit ascent routes were closed at that time as the eruptions intensified with plumes of smoke and ash as high as 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 down into the crater lake were still deemed unsafe and remained closed.

In February 2010 observers at the Gunung Rinjani Observation Post detected a smoke plume that rose 100 m from the volcano. The activity in early 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 a possible ash plume rose to an altitude of 5.5 km (18,000 ft) and drifted 150 km NW. Accordingly the Center of Volcanology and Geological Hazard Mitigation advised that intermittent activity could produce ash plumes to 1,500 m (5,000 ft) above the caldera. In light of this The Volcanic Explosivity Index Alert Level was raised to 2 with a recommendation that there be no activity within a radius of 4 km from the eruption at Gunung Barujari.

Rinjani Eruption at 12 Oktober 2016

Rinjani Eruption at 12 Oktober 2016

Recent activity

Rinjani erupted three further times on 23 May 2010 with activity continuing until 24 May 2010. According to the volcano’s official monitoring agency, ash from Mount Barujari was reported as rising up to 2 km into the atmosphere and damaged crops. Lava flowed into 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 any of the eruptive activity in early 2010 however access to some sections of the Mountain was officially closed or restricted at some times.

LANDSCAPES

The lower and mid levels of the mountain are quite heavily forested. Above the tree line though the slopes are barren and rugged scree slopes and volcanic rock. The views of the crater lake are quite breath-taking from the caldera rim, as is the sunrise. From the absolute peak you can see Bali to the west and Sumbawa to the east.

Gunung Baru Jari, Rinjani eruption, 12 Oktober 2015. (photo: Apink Alkaff)

Gunung Baru Jari, Rinjani eruption, 12 Oktober 2015. (photo: Apink Alkaff)

Flora and fauna

The lower and middle elevation slopes are densely forested with typical tropical species, including species which occupy the Wallacea transitional region between the SE Asian and Australasian flora. Fig trees are especially apparent in the lower forests, as are the giant Syzigium Jambu, with the gnarled and epiphyte-hung Engelhardia Bak Bakan becoming prominent in the higher elevations. Casuarina woodland (cemara) takes over higher up and eventually these give way to an alpine flora above the treeline.

Lombok is East of the Wallace Line and some bird species with Australasian affinities are therefore apparent. These include honeyeaters, cockatoos and green hanging parrots, in addition to species whose heartland is to the West including tits, weavers and tailor-birds. Bird life can be difficult to observe here due to the density of the forest, though if you have patience and are practised at mimicry many species can be tempted out from cover – if you have the time to spare and the forebearance of your trekking partners.

The familiar long-tailed grey macaque (the Bali temple monkey) is common right up to the crater rim. Of much more interest is the rare ebony leaf monkey which inhabits these forests and whose soft hooting contact call often provides a soothing backdrop to the birdsong. Rusa deer and muntjacs are more often heard than seen.

HOW TO GET IN:

Most visitors arrive via the village of Senaru (600 m), on the northern side of the mountain and thus closer to the main resort areas of the west coast including Senggigi. The other possible entry point is Sembalun Lawang (1,150 m), Est Lombok and Senaru, North of Lombok, on the eastern side, which is closer to the summit.(dok: BTNG)

Senaru Crater Rim Program (1N/2D)

Segara Anak Lake, when Rinjani eruption, 12 Oktober 2016

Segara Anak Lake, when Rinjani eruption, 12 Oktober 2015

Day 1: Leave Mataram at 5.00 Am, or from Senggigi at 5.30 Am, or from the island at 7.00 pm. Approx to 2 hour drive to senaru trought beautifull land scape nortland of Lombok. Enjoy hairs of Rinjani’s hill as long as road from Senggigi till tradisional village, Senaru. From Senaru, after breakfast we start the trek. Trought the trofical rainforest after five hour hike. we reach base camp III for big lunch. after drink coffee or tee, we take a walk to rim. in this trek, u need more energi than before. Until comes in Plawangan Senaru around 3.00 pm. Camp here, were we will enjoy the spactaculer view and beautifull sunset, can also overlooks the crater Segara Anak Lake and new volcanic cone (Gunung Baru). Dinner will be served here at 7.00 pm.

Day2: Wake up early to enjoying the morning view and sunrise. At 7.00 Am we serve breakfast than make it 4-5 hour return to Senaru and transfer to next destination. Trip including: transport return, guide and porter, all camping equipment (tent, sleeping bag, mats, and cooking gear), meal (breakfast, lunch, and dinner), Natinonal park (entrence fee).

trip including: transport return, guide and porter, all camping equipment (tent, sleeping bag, mats, and cooking gear), meal (breakfast, lunch, and dinner), Natinonal park (entrence fee).

Crater Rim and Lake Program (2N/3D)

Segara Anak Lake when Gunung Baru Rinjani eruption, 12 Oktober 2016

Segara Anak Lake when Gunung Baru Rinjani eruption, 12 Oktober 2016

Day 1: Leave Mataram at 5.00 Am, from Senggigi at 5.30 Am. Approx 2 hour drive to Senaru trought beautifull landscape north of Lombok. The trek start by 7.00 am for two hour trek up to post II (base camp) trought thick tropical rain forest reach in flora bird life and variety of buterfly. It takes another 2 hour trek to post III (base camp) and one hour to Plawangan (rim) to reach beautifull sun go down. From Plawangan you will able to look in to the crater and touch amazing Segara Anak Lake. as well as have apreview nexs day journey.

Day 2: Beautifull sunrise we will enjoy from the rim (plawangan) while enjoy breakfast before trek down to the lake. it take 2 hour trek we will spent the day enjoying swimming, fishing, and cozzy times in hot spring water. Get your limit in hough of Lombok Vertical point. Bekalak or take a sauna in hot spring water is one of the best moment that you can do.

Day 3: Eazy walking down to base camp after spent second night in Plawangan it take about 4 hour to Senaru base camp and transfer to your nexs destination.

trip including: transport return, guide and porter, all camping equipment (tent, sleeping bag, mats, and cooking gear), meal (breakfast, lunch, and dinner), Natinonal park (entrence fee)

Summit Program (3.726 m)

Gunung Baru Jari eruption, 12 Oktober 2016

Gunung Baru Jari eruption, 12 Oktober 2015

Day 1 : Leave Mataram at 5.00 pm/Sengiggi 5.30 pm. Approx 2 hour drive to Senaru trought beautifull landscafe and amazing north country side Lombok. We begin to trek and traveling trought loca farmer field then the rain forest ini cool morning hour. We arrive at base camp II for lunch around 13.00 pm observe Rinjani in fomous mongkey as you eat meal. But be sure to guard your food from these primates! After wards, we continue on up the creater rim first night camp. here we will enjoy our great dinner as we wacht sunset.

Day 2: If you wish you can get up early to wach the sunrise, after having breakfast and enjoying the lake view from the rim (plawangan) than make it 2 hour decent into the creater to Segara Anak Lake once there will enjoy a long break by the lake side and have lunch here. You can take a cool deep in the lake, or just take relax in the natural volcanic hot springs, explore the area, or just take a take a nap at 2.00 pm. we continue our trip to Sembalun creater ri for dinner and second night camp. be sure to get the bad early here, couse we get up early the next day to catch the sunrise from summit.

Rinjani eruption, 12 Oktober 2015

Rinjani eruption, 12 Oktober 2015

Day 3: At 3.00 Am we start the 3 hour climb to the summit (3.726 m) on volcanic scree, once there enjoy proud feeling of satisfaction and the amazing sunrise view across wallace line to Bali mount Agung and Sumbawa island. we down to Sembalun rim camp for a litle breakfast at 10.00 Am. We will walk around grass of savana journey about 4-5 hour. Transport will wait for you there to transfer back you to the next destination.

trip including: transport return, guide and porter, all camping equipment (tent, sleeping bag, mats, and cooking gear), meal (breakfast, lunch, and dinner), Natinonal park (entrence fee).

*For more information call us : 081805224550 (apinkalkaf@gmail.com)

Apink Alkaff

Apink Alkaff, Rinjani Master Trekking

 

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About apink alkaff

apink alkaff
Tentang penulis: Lahir di Mambalan, Gunungsari, Lombok Barat, NTB. Pernah bekerja sebagai wartawan Lombok Post selama 10 tahun (2002-2012). Juga pernah menjadi kuli tinta di Jawa Pos News Network (2007-2008). Sempat juga menjadi jurnalis LKBN Antara Mataram (2015). Dan kini, menulis di Utarakita.com