Nahal Iyon, Iyon Stream is a perennial stream in the Finger of Galilee and runs from the Ayun Valley to the Hula Valley forming is a stunning gorge with many beautiful waterfalls. The stream originates from the springs in the Marjayoun valley in Lebanon and runs southward for seven kilometers until reaching Israel near Metulla where it is a tributary of the Jordan River in the Hula Valley.
After many years in which the stream ran dry in summer due to Lebanon’s diversion of the waters, the Nature and Parks Authority took action to renew the flow in the stream with the help of water pumped in from Nahal Dan, in order to rehabilitate the unique Nahal Ayun eco-system.