This site is the most likely spot for Jesus' baptism by John, but as it is now unfortunately situated in the middle of an international border the churches come only on special feast days. For group baptism the government opened a substitute site at Yardenit by the Sea of Galilee.

Matthew Chapter 3

13 Then Jesus came from Galilee to the Jordan to John, to be baptized by him. 14 John would have prevented him, saying, “I need to be baptized by you, and do you come to me?” 15 But Jesus answered him, “Let it be so now; for thus it is fitting for us to fulfill all righteousness.” Then he consented. 16 And when Jesus was baptized, he went up immediately from the water, and behold, the heavens were opened and he saw the Spirit of God descending like a dove, and alighting on him; 17 and lo, a voice from heaven, saying, “This is my beloved Son, with whom I am well pleased.”

The Revised Standard Version, (New York: Oxford University Press, Inc.) 1973, 1977.