An exciting adventure begins for England's Prince Charles and Princess Ann escorted by the Queen Mother and Princess Margaret they journey to Ports Smith. At the dock awaits the royal yacht Britannia awaits in readiness for the party. Its the first time the young Prince and Princess embarked on a real ship they'll voyage to North Africa to meet their parents on the last leg of their commonwealth tour. Time for farewell and Bon Voyage from the Queen Mother and their aunt Princess Margaret. Establishing shot - A young Prince Charles and Princess Ann escorted by the Queen Mum on their way to the Royal yacht, Britannia. CUS - Prince Charles looks at the camera giving a hint of a smile. MLS - The Royal Yacht Britannia. CUS - Queen Mum, Princess Margaret bidding Bo Voyage to Prince Charles and Princess Ann as they embark the plank of the Britannia. MCUS - The Britannia's royal navy standing at attention as the young royals embark on the Britannia. MCUIS - The royal children on the deck of the Britannia escorted by Queen Mum and Princess Margaret. MCUS - Queen Mum, Princess Margaret waving farewell to the children as the Britannia pulls away from he dock.