Nahal Barak (Hebrew: נחל ברק), also known as Barak gorge or Barak river, is a dry stream bed and canyon in the Arava desert in Israel's South District. When it is flooded, Nahal Barak forms part of the network of streams that drain the Negev desert. The stream itself is 18 km long, and flows into Nahal HaArava, which in turn flows into Nahal Paran. The stream cuts through limestone to form the gorge, which is known as White Canyon, and is available for hiking.