On the east wall of the garden was a cult painting. It sat above a masonry podium/raised planting bed that ran around the whole room. The painting was divided into two sections horizontally. The right panel featured Sarnus holding a reed and a patera from which water flowed into a stream. On each side of his head were birds in flight with garlands with taeniae present above and hanging down the sides. The left panel, which was larger, featured a single large serpent coiling amidst aquatic plants towards a cylindrical altar that was painted in imitation marble. An offering of a pine cone was seen on top of the altar. Garlands were also seen on this left panel. The painting does not survive today.