After breakfast on day 4, you will leave the moorland environment and enter the semi-desert and rocky landscape. For the first time, we reach above 4000m! After 5 hours of hiking, you will reach the Lava Tower at 4640m above sea level. At this point of the hike, it is normal for hikers to experience the effects of the altitude. These include headaches, shortness of breath, and nausea. Near Lava Tower Lemosho route joins Machame route. The genius Kilimanjaro team will serve you lunch at Lava Tower before you start your descent to Barranco Camp which is located in a valley below the Breach and Great Barranco Wall. The descent will take about 2 hours. The effects of altitude will decrease as you descend allowing your body to adjust to the conditions. This climbing high and sleeping low allows for acclimatization. At Barranco Camp, you will be served dinner after which Genius Kilimanjaro guides will brief you about the following day’s hike before you retire for the night.