55 years old
The grey nomad definition may be formally detailed as australians over 55 years old who travel for an extended period of weeks to months and cover more than 300 kilometres in a day across semi-arid and coastal australia well. (The definition has been slightly modified over the years.)
The grey nomad definition may have been formally detailed as “Australians over 55 years old who travel for an extended time — from weeks to months — and cover more than 300 kilometres in a day across semi-arid and coastal Australia.” — abc.net.au
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