Don't worry if you see a half naked man walking the streets in Speedos in Milton Keynes today

Brave Mick Cullen, aka Speedo Mick, is half way through a remarkable 1,000 mile journey, walking from John O' Groats to Land's End to raise money for charity.

The 55-year-old Everton football fan has vowed to walk the lot wearing nothing but swimming attire - trunks and goggles.

"It makes this challenge a very cold one but it will bring a lot of smiles to people’s faces, I am sure," he said.

This morning Mick posted a video on his Facebook page of him walking along the A5 towards Milton Keynes carrying his collection bucket.

He admits in the video he feels "absolutely freezing" and his mood is low.

"I am knackered. I'm just super tired....The wind doesn't have to blow very hard but when it does, every minute it's just going through the skin and wrapping itself round my lungs,", he said.

But Liverpudlian Mick cheers himself up with a burst of music. his mood further improves when motorists stop to wish him well.

He has had thousands of well-wishers throughout his journey, which started on December 7. And already he had raised an incredible £159,000 for community projects for disadvantaged young people through a charity called Leave the Light On.

But Mick admits his attire has raised a few eyebrows as well as cash during his trip.

He told the BBC: "The police have come and seen me three times - they've just been dead concerned, they've been dead nice. They've just gone 'Are you OK?' because they think I might have just walked out of my house without my clothes and there might be something wrong.

"I'm like 'No it's fine, I'm OK, I'm doing my walk'. They just let me go on."

Mick earned his nickname after swimming the English Channel for charity in his trunks five years ago. He has also turned up at Everton's Goodison Park ground in his trunks to raise more money.

Leave the Light On aims to help young disadvantaged people have a brighter future.

"We will be creating opportunities to bring people together to overcome isolation and experience positive attention and affirmation and to hopefully broaden their horizons," said Mick.

He has suffered mental health problems in the past and spent a period of his life living on the streets as a homeless drug and alcohol addict.

But now he has turned his life around and hasn't touched drink or drugs for 18 years.

There is always hope in the darkest of places," he said.

You can donate to Mick's cause here