Prince Philip may be retiring in Autumn, but he doesn't appear to be slowing down anytime soon. On Wednesday, the 95-year-old royal was spotted taking his carriage out for an early morning stroll through the park beneath Windsor Castle ahead of the annual Royal Windsor Horse Show. Dressed in khaki trousers, a dark jacket, and a newsboy cap, Philip looked in his element as he enjoyed the nice weather. Of course, he isn't the only royal who enjoys riding. At 91 years old, his wife, Queen Elizabeth II, still saddles up to go for an occasional horse ride.