John Evance's attempt has a twist that makes it more interesting than the clock alone. Rather than starting at the Marangu or Umbwe gates, where most previous record attempts have begun

The Shira Route suits the experienced trekker who has been to altitude before and knows how their body responds, and the climber who wants the plateau's vast early wilderness more than anything else on the mountain.

The Marangu Route suits the climber who genuinely prefers a hut to a tent, who is climbing in the wetter months and wants a roof each night, or who is watching the budget. It is a reasonable choice for a first climb too, provided you take the six-day version so your body has the time it needs to adjust. If comfort and simplicity matter more to you than scenic variety, Marangu has real and lasting appeal.

The Rongai Route suits the climber who wants peace and quiet, a gentle and forgiving gradient, or a dependable option in the wetter months. It is a lovely choice for first-time climbers and for anyone who would rather ease up the mountain than tackle the steeper, busier southern routes.

One of the most extraordinary things about climbing Kilimanjaro is how completely the world changes around you as you ascend. Within eight days you traverse five distinct climate zones — from lush equatorial rainforest to arctic glacial summit. Here's what to expect from each one