On the way from Agios Ioannis to Koudouma monastery you can make a short sidestep to find the cave of Agios Antonios.
Coming from Kapetania you have to follow an unpaved steep road winding down to Agios Ioannis. We recommend a 4WD to go by. Shortly before the village you find a parking place above a nice beach. From there you can start your hike on an old donkey trail along the coastline.