rinjani4dTrek Overview. Rinjani Summit 4D3N to Senaru Rim is one of Rinjani National Park Trekking Package Service start from Sembalun to the crater rim Sembalun and overnht in tent, climb Rinjani summit, down to Lake, hot springStart From $ 4 days and 3 nhts summit via Senaru Mt. Rinjani trekking is the most trekkers’ program choice and suitable for beginners.