Duke of Edinburgh's Award recognising Prince Philip's 100th birthday

He sadly passed away on April 9, aged 99.

Prince Philip's many legacies include the Duke of Edinburgh's Award which he founded in 1956.

The Australian arm of the award is recognising the Duke's centenary with Wear Your Badge Day this week, and especially Thursday.

"It is a small gesture to recognise that Prince Philip's initiative has provided an important benefit to nearly 800,000 young Australians," the award's Australian CEO Peter Kaye said.

"We are asking award holders and volunteers - over 60,000 annually are required - to wear their award badge or supporters badge this week, but especially on Thursday and post a photo and message on social media and tag it #awardchallenge100."

Governor-General David Hurley is also hosting a thanksgiving service on Thursday afternoon at Government House in Canberra, recognising the contribution of Prince Philip and the Duke of Edinburgh's Award.

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Award alumni will come together, with service recognition medals being presented to long-term supporters and current generation award participants being presented with their bronze and silver levels.

The award is designed to extend the participant and take them out of their comfort zone, in areas of voluntary service, physical activity, learning a new skill and taking an "adventurous journey", usually overnight in unfamiliar territory.

There is no bricks-and-mortar Duke of Edinburgh club as such and participants usually accessed the program through their school or local community group. There are a number of ACT access places.