These are the latest YouTube videos of the celebrities climbing Kilimanjaro in aid of Comic Relief.
Scroll down this page to take a look:
Firstly, this is Chris Moyles in the heat on the second day of the trek:
At the start of Day Three Fearne Cotton and Denise Van Outen speak about their high and low points:
This is Kimberly Walsh at the start of Day Four. By now it's certainly tough going.
Chris Moyles speaks to us again at the end of Day Four. He's 4,600m up at Lava Tower: