Mt. Rinjani forms the second highest volcanic peak in Indonesia, part of celebrated “Ring of Fire”. The dramatic landscape has been created over millions of year of cone - building, violent explosions, and erosion. Forested slopes rising directly from the sea create their own weather pattern and act as water - collectors for the hole of Lombok

Mount Rinjani is an active volcano in Indonesia on the island of Lombok. It rises to 3,726 m (12,224 ft), making it the third-largest volcano in Indonesia. The first historical eruption occurred in September of 1847. The volcano, and its sacred, and spectacular Segara anak crater lake, are protected by a national park established in 1997. The 6 km by 8.5 km oval-shaped caldera is filled partially by a lake known as Segara Anak. The eruptions of 1994, 1995, and 1996 have formed a small cone in the center of the caldera and lava flows from these eruptions have entered the lake.

The highlands are forest clad and mostly underdeveloped. The lowlands are highly cultivated. Rice, soybeans, coffee, tobacco, cotton, cinnamon, and vanilla are the major crops grown in the fertile soils of the island.

For the people of Lombok, Sasak and Balinese alike, the volcano is revered as a sacred place and abode of deities. Segara Anak crater lake is the destination of thousand of pilgrims who place offerings in the water and bathe away disease in the hot springs.

The endemic duck Belibis is found here and several species of fish are recorded. Mt. Rinjani, one of the over 40 National Parks throughout Indonesia, was established in 1997.
Over 20 villages surround Rinjani and there are many routes up the mountain , but the main access is from Senaru in the north and Sembalun Lawang to the east.
The challenging three-days or four-days Rinjani Trek route from Senaru to the stunning crater rim (Plawangan), down to the stunning crater lake then on to Sembalun Lawang, is considered as one of the best treks in south East Asia . Those heading for the summit usually prefer to start in Sembalun Lawang.

A model for ecotourism in Indonesia, the community based activities are focused on the Rinjani trek Center in Senaru, the most popular starting point for the tough trek. Developed with New Zealand government assistance since 1999, the Rinjani trek Center embodies under one roof (Satu atap) the unique partnership of the National park, tourism industry and Local communities that has been forged to manage and protect the Rinjani mountain environment.