Today is the big day at last. The sun is out, the skies are clear, and we have learned that BA57 left Heathrow last night, bound for Johannesburg. We will only know when the plane lands, whether Cynthia is on board or not, but we are hoping for the best.

The rest of today will no doubt pass in a whirl of emotion and activity, but underneath it all is a sense, quite simply, that the moment has come. By 5.30 this evening, Roberta Jane Pazdro and I will be married. Something quite simple, and profound, will have happened, and our lives will have altered irrevocably – and, I truly believe, in a most wonderful and positive way.

Thank you for all the kind thoughts and messages from friends and family far and near – it means a great deal to us. Please think of us this evening, as we make our promises in the Cradle of Humankind, on this day, the summer solstice.