I've yet to see any proof that this "Jesus Christ" actually existed, let alone walked on water and all that. The bible contains several miraculous events surrounding the life of Christ which should have been observed even by nonbelievers, yet no observer at the time wrote of it. The bible wasn't written until at least sixty years after Jesus allegedly died, quite possibly over a century later. There were people in the area at the time who wrote detailed accounts of events at the time, yet said nothing of this allegedly miraculous man who came back from the dead.
Christianity actually has many similarities to other cults at the time. The Mithras cult believed that Mitrhas was born to a virgin mother on December 25th, died and was resurrected. They claimed Mithras was the chief agent of the "good god." The Mithras cult was a subset of Zoroastrianism, which was the first religion to have a good god and a bad god - the first idea of a Satan/God came from them. The Mithras cult predated Christianity by several centuries. And Mithras wasn't the only cult like this, many cults at the time had similar stories - virgin birth, messiah, ressurrection, etc. Christianity was just the Jewish version of it. It just happened to become the largest one and was the only one to really survive into the present day.