I lost both my Mum and Dad within 12 days of each other earlier this year. In the weeks that followed, I needed something that felt worthy of them, a challenge as big as the love I have for them both.

So I'm walking the entire 84-mile Norfolk Coast Path in a single, unbroken attempt. No stopping. No sleeping. Just one foot in front of the other until it's done.

My Dad spent his final years living with dementia, cared for with patience and dignity right to the end so every pound you donate goes to Dementia UK. If you can spare anything, it means everything.

— Mark