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Nahal taninim
Nahal Taninim (Hebrew: נחל תנינים, lit. Crocodile Stream) or Wadi az-Zarka (Arabic: وَادٍ الزرقاء, lit. Blue Stream), is a river in Israel, 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.
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The river is named for the crocodiles that inhabited the nearby Kebara swamps until the early 20th century. The remains of Crocodilopolis, a city established there in the fourth century BCE, are still visible today.
The area of the basin and its tributaries is about 200 square kilometers, including the Taninim, Ada, Barkan, Alona and Mishmarot streams. Nahal Taninim is the cleanest of Israel's coastal rivers. Three waterways meet in Nahal Taninim: the natural stream, a Roman aqueduct extending from the Zabrin springs to Caesarea, and Mifale Menashe, the waterworks that collect surface runoff water and springwater, routing it into the subterranean water table.
The dense undergrowth and reeds along Nahal Taninim are home to many different birds, among them waterside warblers and other songbirds.
A small species of crocodile once inhabited the river. The last recorded sighting of a crocodile was in 1912.