The rocky shores of Macro Prespa are scattered with Byzantine frescoes painted directly onto cliff faces — images of saints, Christ, and the Virgin painted by the hermit monks who lived in caves and rock-cut chapels around the lake from the 10th century onwards. The paintings survive in varying condition, some remarkably intact given their age and outdoor exposure.
The best way to see them is by boat from Psarades. The boatmen who run trips on the lake know the locations of the main paintings and can bring you close enough to appreciate them. Several can also be reached on foot along trails from the village, though the paths are not always signposted. A combined boat trip and short walk typically covers the main sites in two to three hours.