A group of dads is embarking on a 500-mile (804km) topless road trip around the UK.
The seven-strong team from Derbyshire has acquired three old convertible cars and will take on a journey through England, Wales and Scotland with the tops down whatever the weather.
They also plan for at least one of them to be shirtless at all times during the two-day challenge which starts today.
The dads are raising money for mental health charity Mind.
One of the dads, Simon Luscombe, said: "We meet as a group once a month in our local pub.
"Somebody we all knew took their own life two or three years ago and it did affect us.
"We started talking about it and it opened questions about mental health in general, so we felt we wanted to do something in our own small way.
"A lot depends on the weather but the important thing is one of us will be topless at any given time.
"If someone get too cold we'll be swapping straight away."
He said the group planned to visit Chirk in Wales before driving up to Gretna Green on the Scottish border then returning to Derbyshire.
"Bear in mind these are all old cars and we're more than aware something may go wrong," he said.
"We are as prepared as we can be."
The dads have been doing some topless trial runs around the Peak District which, Mr Luscombe said, "put a smile on people's faces".
Roj Woolley, another team member, said he hoped the challenge would raise awareness of mental health and encourage men to seek help if they are struggling.
The dads hope to raise £5,000 through the trip and already have more than £3,000 pledged by supporters.
Ian O'Reilly, head of community and events fundraising at Mind, said: "We are really grateful to this group of dads for choosing to support Mind through the Topless Challenge, and we wish them well."
Follow BBC East Midlands on Facebook, on Twitter, or on Instagram. Send your story ideas to eastmidsnews@bbc.co.uk.
Rugby club focuses on mental health after suicides
Call to tackle 'racism' in mental health care
Mind
Twilight walkers mark a year of Elvaston Night Walks
This is what your Derbyshire MP earns over and above their £84,144 basic salary
Almost 50 trees planted in Chesterfield in memory of Queen
Derbyshire tourist attraction looks to renovate and expand tea room
Almost 200 drivers arrested in Derbyshire Christmas drink-drive crackdown – with one man four times the legal legal
Award winning children’s author visits Buxton pupils
Dozens killed as plane crashes near Nepal airport
Video shows Nepal plane roll moments before crash. Video
California battles deadly storms and more flooding
The man who first discovered plastic in the ocean. Video
VR headset prices high as Apple bides its time
Plan for a million Christians to visit Jesus site
Your pictures on the theme of 'open doors'
How drones could be the future of Indian farming. Video
Vladimir Komarov: The cosmonaut who fell to Earth
Christian missionaries target the birthplace of Buddha
Canada wrestles with euthanasia for the mentally ill
New Zealand egg shortage threatens pavlova
Britain's lost and legendary 'Area 51'
The axed workers posting epic goodbyes
The skiers dedicated to alpine warfare
© 2023 BBC. The BBC is not responsible for the content of external sites. Read about our approach to external linking.
