The Ein Afek Nature Reserve (also En Afek, En Afeq, Ain Afek) is a nature reserve in the Acre Valley within the Zvulun Valley, Israel.

It covers the swamps and springs at the source of the Na'aman River, as well as the Tel Afek archaeological site.

[2] The nature reserve, declared in 1979, covers 366 dunams.

[3] The highlights of the park include the Crusader fortress and the natural water canals and lake, which draw their waters from the year-long flowing springs of Afek, which are the source of the Naaman river.

[1] It preserves the remnants of the vast swamps in the Acre Valley, drained and pumped out.