The best Kilimanjaro hiking routes for altitude acclimatization allow you to climb high during the day and sleep low at night. Climbing high during the daytime gets your body used to the high altitude. By sleeping at a lower elevation during the night, your body has enough time to take a break from the lack of oxygen associated with higher elevations. You should also ascend slowly over multiple days so that your body can acclimatize better.
7-day Machame, 8-day Lemosho, 8-day Grand Traverse and 9-day Northern Circuit (including acclimatization hike to Lava Tower) are all excellent routes for altitude acclimatization that allow you to hike high, sleep low and ascend slowly over multiple days.
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