Day 1: Sembalun to Sembalun Crater Rim - You will start from Sembalun village and register at the Rinjani Information Center. - You will trek through open grasslands, for about 2.5 hours until you reach Pos 2 and will have lunch and refill and continue for 1 hour to pos 3 - You will climb up on a loss sand slopes for about 3 hours until you reach the Sembalun Crater Rim. - You will set up your camp and enjoy the views of the crater lake, the volcano, and the sunset at the Sembalun Crater Rim. - You will have dinner and rest in your tent, and prepare for the summit climb early the next morning. Day 2: Sembalun Crater Rim to Summit to Sembalun - You will wake up around 2 am and have a light breakfast before starting your summit climb. - You will ascend about 1100 meters in 3 hours on a loose gravel path to reach the summit of Mount Rinjani. - You will see the sunrise over the horizon, and other volcanoes in Bali, and Sumbawa at the summit. - You will descend back to the camp, have breakfast, and pack up. - You will follow the same route as the previous day, stopping at the same rest, until you reach Sembalun village. - You will be picked up by a car and driven back to your hotel