After the expedition, George and Kate then joined the Queen, Prince Charles, Princess Anne, Zara and Mike Tindall, and Prince Edward, his wife Sophie Wessex and their children James, Viscount Severn and Lady Louise Windsor.
On Sunday, the Queen, William, Kate, Anne, Sir Timothy Laurence, their daughter-in-law Autumn Phillips, Charles, Edward, Sophie and Louise were all photographed en route to attend church services at Crathie Kirk.
George has just one week left of Summer, before he returns to school at Thomas Battersea in London.
A source told PEOPLE that the prince is 'very happy' at his new school, where he is known as George Cambridge.