Caption: Princess Charlotte smiles in her mother's arms as they watch the equestrians make their way around the course
Caption: Kate claps her hands while her son blows a raspberry as William's schoolfriend James Meade watches on, looking amused
Dressed down in jeans
The royal couple treated George, two, and Charlotte, 12 months, to a day at the Houghton International Horse Trials at King's Lynn, Norfolk, just a half-hour drive from their home in nearby Anmer.
The family-of-four looked happy and relaxed according to onlookers, who saw them enjoying a picnic with friends, eating chocolate cake from paper plates
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