I think mine was when my then 17 yr old DD insisted that I needed to go with her on a photography trip to the Galapagos Islands. Don't know many 17 yr olds that would want to take their mother's on a school trip. Since then we have done a lot of traveling together, London, Paris, Sinaporex2, Cambodia and Japan. We always have a wonderful time. I cherish these trips and figure someday she will have someone else she would rather travel with.