The small piney gorge of Keratida starts above the village Koustogerako and after about 2 hours of hard trekking, it meets the seaside E4 trail that connects Sougia to Agia Roumeli. Initially the course is on the side of the gorge. The downhill is steep and we have to be careful, as the gorge is inhospitable. The course ends on the sea, very close to the beach of Agios Antonios (Charei). From Agios Antonios, one needs two more hours to return to Sougia.