There are several Wombles-themed events taking place around the country - in Bradford, Newcastle, Cheltenham and Wimbledon - as well as online activities to keep kids entertained.
Haydon and Orinoco appeared at this year's Wimbledon Village Fair. AFC Wimbledon opened the fair with Haydon jumping off the stage, and Wimbledon Bookfest had Wombles storytelling and a singalong.
A children's party to relaunch the Wombles books is one of the highlights of this year's Wimbledon Bookfest in October. Organised by publishers Bloomsbury, the event will take place in a big tent on Wimbledon Common.