Nahal Taninim (Hebrew: נחל תנינים‎, lit. 'Crocodile Stream') or Wadi az-Zarka (Arabic: وَادٍ الزرقاء‎, lit. 'Blue Stream') is a river in Israel near the Arab town Jisr az-Zarqa, originating near Ramot Menashe and emptying into the Mediterranean Sea south of Ma'agan Michael. It marks the southern limit of the Hof HaCarmel, or Carmel Coastal Plain region.