Kate Middleton, Duchess of Cambridge, joins inner city schoolchildren on a camping trip as part of the ‘Expanding Horizons’ primary school scheme in Kent, UK.

Kate Middleton, Duchess of Cambridge, joins inner city schoolchildren on a camping trip as part of the ‘Expanding Horizons’ primary school scheme in Kent, UK.

Kate Middleton, Duchess of Cambridge, joins inner city schoolchildren on a camping trip as part of the ‘Expanding Horizons’ primary school scheme in Kent, UK.

Kate Middleton, Duchess of Cambridge, joins inner city schoolchildren on a camping trip as part of the ‘Expanding Horizons’ primary school scheme in Kent, UK.

Kate Middleton, Duchess of Cambridge, joins inner city schoolchildren on a camping trip as part of the ‘Expanding Horizons’ primary school scheme in Kent, UK.

Kate Middleton, Duchess of Cambridge, joins inner city schoolchildren on a camping trip as part of the ‘Expanding Horizons’ primary school scheme in Kent, UK.