Looking every inch the confident toddler, Prince George is pictured walking in an official photograph released to mark his first birthday.
With his arms outstretched and his eyes fixed on where he is going, the future king is striding ahead in the picture taken during a visit with his proud parents to the Sensational Butterflies outdoor exhibition at the Natural History Museum.
The youngster will celebrate his first birthday tomorrow when the Duke and Duchess of Cambridge are expected to hold a birthday party for him at their Kensington Palace apartment with close family and friends.
In the picture, George is dressed in a pair of dungaree shorts over a polo shirt-style top and shoes and socks.
Commenting on George's birthday, a Kensington Palace spokeswoman said: "The family are going to be marking it privately with close family and friends at Kensington Palace."