Prince William, Kate Middleton finally feel free to show affection in public: experts

Prince William and Kate Middleton's increasingly affectionate public appearances have caught royal watchers' attention, with experts saying the couple are entering a happier, more relaxed chapter following a difficult few years.

On William and Middleton's official Instagram account, the couple shared a photo of themselves embracing in a deep hug after completing the National Three Peaks Challenge for The Royal Marsden Cancer Charity.

During the challenge, Middleton hiked the three tallest mountains in Scotland...