The Tŷ Hafan Dads Group plans to reach the highest point in each of Wales’ 22 local authority areas next July.
The “Catch22Peaks” challenge will include climbing, hiking, and mountain biking.
It will cover a total ascent of 6,750 metres – the equivalent of scaling Yr Wyddfa seven times and aims to raise more than £40,000.
The group will start in Anglesey and finish at Tŷ Hafan in the Vale of Glamorgan.
Paul Fears, leader of the Tŷ Hafan Dads group, said: “This is possibly our most ambitious challenge to date and we’re already in training to achieve our goal.
“But we could not have better motivation because as the fathers, uncles and family friends of children with life-shortening conditions, we’ve all either benefited from support from Tŷ Hafan, or seen the impact of support provided up close.
“I’m doing this in memory of my son Greg, who we lost in 2023.”
“Our goal is simple – to raise as much money as we can for Tŷ Hafan so more people can get help like we do.”
For Jordan Mullins from Quakers Yard in Merthyr Tydfil, this will be his first Tŷ Hafan Dads Group challenge.
Mr Mullins said: “This will be my first challenge and I’m doing it for my son Bowden.
“It will be nice to give back to Tŷ Hafan and share the experience with other dads.”
The group has completed three previous extreme challenges, raising more than £160,000 so far.
James Davies-Hale, Head of Fundraising for Tŷ Hafan Children’s Hospice, said: “We’re in awe of what these guys have achieved already and I would encourage everyone to get behind them to help them succeed.”
