Kilimanjaro is the fourth most topographically prominent peak on Earth. The first people known to have reached the summit were Hans Meyer and Ludwig Purtscheller, in 1889. It is part of Kilimanjaro National Park and is a major climbing destination. Because of its shrinking glaciers and disappearing ice fields, it has been the subject of many scientific studies.
There are seven established routes to climb Mount Kilimanjaro – Marangu, Machame, Lemosho, Shira, Rongai, Northern Circuit and Umbwe. The Marangu, Machame, and Umbwe routes all approach from the south of the mountain (Mweka is used only for descent). The Lemosho, Shira and Northern Circuit routes approach from the west.
Known as the "Coca-Cola" route, the Marangu route is a classic trek on Mount Kilimanjaro. It is the oldest, most well established route. Many favor the Marangu route because it is considered to be the easiest path on the mountain, given its gradual slope. It is also the only route which offers sleeping huts in dormitory style accommodations.
Known as the "Whiskey" route, the Machame route is now the most popular route on the mountain. Compared with Marangu, the days on Machame are longer and the walks are steeper. The Machame route is considered a difficult route, and is better suited for more adventurous folks and those with some hiking or backpacking experience.
The Lemosho route is one of the newer routes on Mount Kilimanjaro. The route begins in the west and rather than simply intersecting Shira Plateau (like Machame), Lemosho crosses it from Shira Ridge to Shira Camp. Climbers encounter low traffic until the route joins the Machame route. Afterwards, Lemosho follows the same route through Lava Tower, Barranco and Barafu, known as the southern circuit.
The Shira route is another path that approaches Kilimanjaro from the west, and it is nearly identical to the Lemosho route. In fact, Shira was the original route and Lemosho is the improved variation. While Lemosho starts at Londorossi Gate and treks through the rain forest to Shira 1 Camp, the Shira route bypasses this walk by using a vehicle to transport climbers to Shira Gate, located near the Shira Ridge.
The Rongai route is the only route that approaches Kilimanjaro from the north, close to the Kenyan border. Though gaining popularity amongst climbers, Rongai has low traffic. It is the preferred route for those looking for an alternative to the crowded Marangu route, for those who would like a more remote hike, and for those who are climbing during the rainy season (the north side receives less precipitation).
The Umbwe route is a short, steep and direct route. It is considered to be very difficult and is the most challenging way up Mount Kilimanjaro. Due to the quick ascent, Umbwe does not provide the necessary stages for altitude acclimatization. Although the traffic on this route is very low, the chances of success are also low.