The first impression that someone has from the inside of the church is dark, if not black! The interior is unclear, and the visitor’s eyes must first get used to it, which is then transferred from daylight to darkness, of the small Temple without windows and electric light.
As soon as the visitor gets acquainted with space, he notices that the wall and the dome of both the main church and the Holy Table are eroded. Signs of the fire, which according to the oral tradition, were put by the Turkish occupiers. According to more official versions, the erosion of the interior of Saint Ioannis is due to a long time concerning the conditions created by the combination of the humid climate of the coastal area and how the small Temple is built. Of course, no one rules out that both cases may apply, which has thus brought to the current situation the church’s interior. Despite the efforts of time and people, some of the frescoes that adorn the entire interior of the Temple have been preserved in almost good condition. The vigilant figure of the Pantocrator dominates the vault. In the northern part, there are representations from the Holy Passions. The Crucifixion, the Burial, and the Godman’s Resurrection are represented in this part of the Temple. There are the strict and ascetic figures of saints on the south wall, whose names are no longer distinguished in the old-fashioned and worn-out fresco. At the base of the same fence and throughout its height, there is a painting representation of hell scenes, as created by the popular imagination. In this strip, the illustration depicts the punishments of the miller and the wine seller who stole their customers. The miller has the millstone on the neck, while the wine seller has the barrel.