From Leonidio, take the road towards Elona/Kosmas for about 3km. Park on the side of the street, just after a dirt road leading up to a goat farm on the right side (37.1626, 22.8291). You'll see the wall from street, just right above the small sector 'Giggerl'.

 Walk up the dirt road. About halfway to the farm, a path leads up to the right. Follow that path for about 500m until the ruin of an old goat pen. From here, you'll have to find your way past the goat pen, scrambling up some steep scree and loose rock towards the wall base.