Prince Charles took William and Harry litter picking during their Norfolk holidays
- Credit: PA
The Prince of Wales used to take his sons litter picking during their school holidays spent in Norfolk, the Duke of Cambridge has revealed.
William and his brother, the Duke of Sussex, thought it was normal to be given spikes and black plastic bags as teenagers and encouraged to clear up other people's rubbish.
William said: 'He took us litter picking, when we were younger, on holiday.
'We were in Norfolk on school holidays, and went out litter picking with him ... Both of us thought 'This is perfectly normal, everyone must do it'.
'We're there with our, basically, spikes, stabbing the rubbish into black plastic bags.'
You may also want to watch:
William shared the anecdote about his childhood summer holidays in a new BBC documentary marking Charles's forthcoming 70th birthday.
Talking about his father, William said he lives 'the way he advocates' when it comes to his environmental beliefs. William went on to say that his father was affected by the backlash he received for his environmental views, which saw him ridiculed for supposedly talking to plants.
- 1 Revealed: The most expensive towns to buy a home in Norfolk
- 2 BBC Autumnwatch returns to Norfolk for another season
- 3 'I remember shutting down' - Singer on cancer diagnosis at Norfolk hospital
- 4 Hundreds more trees on route of Norwich NDR have died
- 5 950-home bid takes step forward after £7m developer contribution agreed
- 6 Ford and Jaguar crash in second incident near village in same night
- 7 Couple fined £400 for digging up 8,000 Norfolk bluebells
- 8 Road closed after crash involving car and two tractors
- 9 What might happen to former Debenhams store in city centre?
- 10 Seven cosy pubs to visit in Norfolk this winter
He said: 'He does live the way he advocates so, until someone comes up with an electric plane - it's impossible to get round the world, for instance, without using a plane that's there.
'He did take to heart the criticism quite a lot when he was younger.'
Harry confessed he was 'programmed' to collect litter because of the positive influence of his father.
He said: 'He's done an amazing job without telling us what we should be doing or what direction we should be going.
'He's just let us learn from the nature of the job, learn from him, learn from Mummy, to the point where I used to get the ... mickey (taken) out of me at school for just picking up rubbish.'
Charles is well known for his campaigning to protect the rain forests, save endangered species from extinction and combat the threat of climate change.
William and Harry recall the memory in a Prince, Son and Heir: Charles At 70 will be broadcast on Thursday at 9pm on BBC One.