It's that time of year when I pull on my hiking boots and your heartstrings in aid of finding a cure for retinitis pigmentosa.

You’ve all been very generous in the past so I thought I had better push myself a bit further for the latest challenge.

Climbing Africa's tallest mountain didn't seem quite enough.

So I'll be doing the final six-hour push in the dark, when RP helpfully adds utter night blindness to the usual tunnel vision!

Please sign up - every penny makes it that little more likely that future generations won’t have to worry about going blind.

I’m funding the trip myself so all proceeds go straight to charity

Thank you and please spread the word. I do this to raise awareness of RP as well as cash to cure it.