The Bible is silent on most of Jesus’ years before he began his ministry. Many theories, including more than a few strange ones, have been floated about the “missing years.” These include travels to just about everywhere in the world. Some apocryphal accounts claim to have details of his childhood, though they date long after his time (Anne Rice did conjure up an interesting novel that was in part based on these stories). One of the more plausible legends has Jesus visiting Britain with his “uncle” Joseph of Arimathea. Local legends claim Jesus was there, but the debate centers around how old those legends are and if they were created to attract pilgrims. Nevertheless, it is an interesting possibility. See Glyn S. Lewis’ book for more (even he wanders into some strange speculations at times).