The Duchess of Cambridge and her son, Prince George, spent an enjoyable day playing on the grass during a charity polo event Sunday. According to E!News, Prince William and Kate Middleton brought the nearly 2-year-old toddler to the Gloucestershire Festival of Polo at the Beaufort Polo Club in Gloucestershire, England.

The mother and son were both in blue: Kate wore a dark blue and white striped shirt with blue skinny jeans, while George wore a blue cardigan over a white shirt, dark blue shorts and blue Crocs. George was in a playful mood as he frolicked on the grass with his mother while Prince William played in a polo match. 

The toddler had a huge grin on his face while playing with a small red car and a polo ball. The young prince also had Kate chasing after him as he tried to climb up a small, grass-covered hill.  An onlooker shared with Us Weekly that George had a lot of fun Sunday. "When he saw his cousins rolling around on a hill, he wanted to get involved too, so he raced over the slope and tried to roll. Kate was with him and they were lying in the grass together. He's so cute."

While the two were having fun on the grass, Prince William and Prince Harry participated in the charity polo match, reported UK’s the Telegraph Sunday. The charity festival tickets costs only £10 (approximately US$15), and guests got to enjoy polo demonstrations, along with the chance to visit more than 40 exhibitors in a tented village.

Among the event’s guests were Prince Charles, Zara Phillips and husband Mike Tindall with daughter Mia Grace, as well as Peter and Autumn Phillips with children Isla and Savannah. Princess Charlotte was notably absent during the festivities.