From the port car park, take the road to Apollonia. At 4.3 km, bear left to "Center."  At 4.8 km turn left to Artemonas. At 6.0 km turn right to Cheronissos. At 9.2 km, you will see signs to Agios Sostis. Carry straight on. After 200 meters (9.4km), just after the trash cans, turn right up a concreted track. The entrance to the estate is immediately on the right.