RABBI SHIMON BAR YOHAI'S GRAVE is in need of attention:

State comptroller finds chaos, danger at Bar-Yohai grave
By DAN IZENBERG (Jerusalem Post)

One-and-a-half million people visit the grave of Rabbi Shimon Bar-Yohai on Mount Meron, near Safed, each year, but the holy site is improperly administered and in disrepair, the state comptroller reported on Sunday.

The state comptroller also found that the celebrations on Lag Ba'Omer draw 250,000 to 400,00 people each year but are illegal because the Merom Hagalil Regional Council does not issue a permit.

They are also dangerous, because there is no supervision of the accommodations and the activities.

[...]

More people visit Bar-Yohai's grave than any other holy site in Israel other than the Western Wall. Nevertheless, there is no effective management of the site. Four religious trusts claim rights over the grave and each acts as it sees fit. The regional council has not tried to assert its own authority over the site.

As a result of the administrative chaos, there has been a great deal of illegal construction at or near the grave. For example, "In 1980, an awning was added to the visitors' center supported by iron beams connected to the northern wall of the original building, which conceal part of the upper windows and ruin the unique and ancient look of the northern façade."

All the additional construction was executed without building permits.

The grave itself was built in the 18th century. The Antiquities Authority Law states that any structure built by man from the 18th century that has historical value may be declared an antiquity.

[...]

Rabbi Shimon Bar Yohai lived in the second century CE. The Zohar is pseudepigraphically attributed to him.