Mount Rinjani Tour Overview
A Mount Rinjani tour ascends Indonesia's second-highest volcano, crossing Sembalun grasslands and crater rim trails to the turquoise Segara Anak lake at 2,000 meters. Guided Rinjani trekking tours typically span three days, overnighting at Senaru Crater Rim and lakeside camps before summiting at 3,726 meters. Porters carry camping gear while trekkers navigate volcanic terrain and hot springs.
Mount Rinjani reaches 3,726 metres above Lombok's northern spine, making it Indonesia's second-highest volcano and the tallest point in the Lesser Sunda Islands. The mountain erupted violently in 1257, an event so catastrophic that recent ice-core analysis links it to the Medieval Warm Period's abrupt end.
That eruption created the Segara Anak crater lake, a crescent of turquoise water 600 metres below the caldera rim, revered by Lombok's Sasak people and Bali's Hindu pilgrims who journey here annually to cast gold offerings into its depths.
Mount Rinjani National Park protects 41,330 hectares of montane forest, savanna, and alpine scrubland across the volcano's flanks. The conservation zone was established in 1997 and expanded in 2010 to include the Sembalun and Senaru approach corridors. Over 70,000 trekkers register each year at the park gates, most attempting either the two-day crater rim route or the three-day summit ascent. The mountain remains volcanically active—a new cone, Gunung Barujari, emerged inside the crater in 1944 and erupted as recently as 2016, temporarily closing the summit trails and reshaping the lakeside topography.
Mount Rinjani tour packages typically depart from Senaru village on the northern slope or Sembalun Lawang to the east, both starting at elevations near 600 metres. The Senaru route ascends through dense tropical forest before breaking into grassland at 2,000 metres; the Sembalun track crosses open savanna and offers faster acclimatization. Summit attempts begin near 02:00, allowing climbers to reach the 3,726-metre peak by dawn, when views extend across Bali's Mount Agung to the west and Sumbawa's Mount Tambora to the east. The descent often includes a side trek to the crater lake and the Aik Kalak hot springs, where sulfurous water pools at 40°C along the shore.
The mountain's ecosystems span five climate zones, from lowland plantations to alpine stone desert. Black ebony and ironwood dominate below 1,400 metres, giving way to casuarina and edelweiss at higher elevations. Long-tailed macaques inhabit the forest belt, while the rare Rinjani scops owl and Flores hawk-eagle hunt the mid-slopes. The conservation fee of 250,000 IDR per person per day funds trail maintenance, porter welfare programs, and reforestation efforts following the 2018 earthquake that damaged sections of the northern route.
48 hr
