Princesses Take An Elephant Ride At The London Zoo -- Princess Elizabeth and Princess Margaret riding on an elephant at the London Zoo.Princess Elizabeth and Princess Margaret temporarily forgot the parting from their parents - now on the way to Canada - when they paid an early morning visit to the London Zoo with a party of young friends.They rode on the elephants, gave them tit-bits, took ***** in a llama carriage and spent a considerable watching the amusing baby Giant Panda. May 10, 1939.