First, Richard Bauckham — the amazing scholar and author of, among other things, Jesus and the Eyewitnesses — has an interesting lecture here. In brief, he discusses how the supposed geographical “errors” in Mark can be explained by the facts that (1) Mark is relying on the recollections of Peter, and (2) Peter himself was a local fisherman and so his geography is going to reflect that.
Second, the first thing that the Samaritan woman (John 4) does after her encounter with Jesus is … tell all her friends about it. Doesn’t that make sense, and doesn’t that sound like the truth?
Have an enjoyable and reflective Holy Week!