Nahal Alexander

Nahal Alexander and Wadi Zeimar are the names of a river in Israel that flows from the western side of the Samaria mountain belt in the West Bank to the Mediterranean Sea north of Netanya, mostly through the Hefer Valley. Nahal Alexander (Hebrew: נחל אלכסנדר, romanized: Alexander Stream, Arabic: Nahr Iskanderuneh) is the name of the lower 32 km section of the 44 km long river, while Wadi Zeimar is the Arabic name of its upper, 32 km long section. The river starts southeast of Kafr Abbush, and its drainage basin drains the Nablus and central Samaria areas, as well as part of the coastal plain. It is the habitat of soft-shell turtles that can reach a size of 1.20 meters, and its lower course with its surroundings is declared a national park.

The stream receives water from Nahal Shechem, Wadi et-Tin/Nahal Te'enim, Nahal Ometz, Nahal Behan and Nahal Avichail (named after the moshav).