The caption takes you to a cell-phone video of an expert, Dr Vassallo of the superintendency of art and culture, leading a group called Let's Save Addaura on a rare visit to the graffiti of Addaura. The site has been closed for years, but I saw it in person in July 1986, the year I lived in Mondello. The graffiti are unusual in that they depict humans, not just animals. It might be an initiation scene of men dancing around a fire.
The link brings you to someone's Facebook page so you might have to scroll down on that page to find the video.
The link brings you to someone's Facebook page so you might have to scroll down on that page to find the video.