Rock stars and heroes marched off into Windsor Great Park to raise money for Alexander Devine Children's Hospice Service.
Adults, children and even dogs got into the spirit of the Rocks Stars and Heroes Sponsored Walk, with superhero costumes, glittering wigs and inflatable guitars.
The charity was launched by John and Fiona Devine, from Dedworth, in memory of their son, Alexander.
They are aiming to raise £5m in order to open a children's hospice in Maidenhead.
Fiona said the theme was a nod to the children and families who use the hospice service.
"They are all heroes and they are fantastic," she said.
"We also thought it would attract people and families if there was a theme to our event."
About 100 people pre-registered and about a further 50 signed up on the day.
Walkers had a choice of either a five or 10-mile route through the park.
Fiona added numbers were up on last year and she hopes it will continue to grow year on year.
Before setting off, young rockers and heroes could get their faces painted and jump on the Maidenhead Advertiser bouncy castle while the Devine Buskers provided the music.
The musicians are all volunteers who come and support the charity at their events.
"Because of their superb talents, they have now got a couple of gigs out of it," said Fiona.
Deputy Mayor James Evans (Con, Clewer South) opened the walk.
"Normally when I open things I wear a suit," said Cllr Evans while sporting a sparkly red wig.
"But today I think we are all going a little bit crazy for charity."
The walk started at Stag Meadow in St Leonards Road, Windsor, on Sunday.
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