rinjani4dMount Rinjani Trekking with Rinjani Odyssey Jln. Pariwisata, Senaru, Bayan Kabupaten Lombok Utara. PO BOX: 83354Then you get to do one of the most popular and challenging treks in Indonesia. Towering at 12,224 feet on the island of Lombok, Mount Rinjani is one of the hhest volcanoes in Indonesia.