Princess Alice Hospice will host its 21st Towpath Trundle in May and wants supporters to follow Alice Bear along the banks of the Thames.
After the walk, children can meet Alice for a teddy bears picnic and have the chance to meet Peppa Pig.
The event on Sunday, May 19, from 11am, will set off from Walton Bridge or Sadlers Ride on a choice of a four or eight-mile route.
In celebration of reaching 21, entry to the walk is free.
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