Huleh Valley is an agricultural region in northern Israel with abundant fresh water. It is a major stopover for birds migrating along the Syrian-African Rift Valley between Africa, Europe, and Asia. The marshland around Lake Hula, a breeding ground for mosquitoes carrying malaria, was drained in the 1950s. A small section of the valley was later reflooded in an attempt to revive a nearly extinct ecosystem. An estimated 500 million migrating birds now pass through the Hula Lake every year.