Ayios Ioannis is located on the extreme northern end of the Psili Korfi massif. Its height is 4,815 feet above sea level. The steepest section of this mountain is on the north/northwest face.
Follow the directions to the Romvou monasteri. From here go north which will lead down the Xalia ravine and head directly up the mountain. The direct route up the western face is UIAA III AND IV. The northwest face is completely IV.
Depending on the amount of ice or not the route can take up to an hour or even 2 hours. This is a relatively short route as the elevation gain is 1500 feet from the monastery.
Sport climbing gear and ice ax and crampons during the winter months. Risk of avalanche is generally low.