The cruise company Explora Journeys has begun the launch of what will eventually total six ships by 2028 and I’m travelling for just under a week on one of them, Explora II. We embark at Valletta in Malta where an expansive wedding is taking place. One of the port's large canons is fired as the couple tie the knot, in a scene resembling The Godfather spliced with Game of Thrones (the TV series was filmed here).