Edku is a town in the Beheira Governorate, located east of Alexandria and west of Rashid, overlooking the Mediterranean Sea. Edku lies on a sandy strip behind Abi Qir Bay, in the northwestern Nile River delta. Immediately south is Lake Idku, a 58-square-mile lagoon that stretches some 22 miles behind and parallel to the coast and has a maximum width of 16 miles.