rinjani4dWELCOMETO DIN TREKKING RINJANI. Lording it over the northern half of Lombok, Mount Rinjani (3726m) is Indonesia’s second-tallest volcano. It’s an astonishing peak, and sacred toWELCOMETO DIN TREKKING RINJANI. Lording it over the northern half of Lombok, Mount Rinjani (3726m) is Indonesia’s second-tallest volcano. It’s an astonishing peak, and sacred to