rinjani4dTrekking exploring Rinjani 4D 3N . Trekking Mount Rinjani, also known as Gunung Rinjani, is a popular trekking destination in Indonesia. It’s located onThen 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.