Resolving this was not a trivial task. In short: There are two different nature reserves, close to one another, with very similar names: “שחלבים במנרה” (Sahlavim BeManara) and “סחלבים מנרה” (Sahlavim Manara).
I have separated the two and added a note for the benefit of other mappers.
Note: The “Sahlavim BeManara Nature Reserve”, located further away from Manara itself, is also known as “Har Nezer Nature Reserve”, based on its accurate geographic location.