Muuksi stronghold hill was established on a naturally suitable small cape. At the location of the stronghold the western side rises from the surrounding ground for up to 10 metres higher. The main task of that was probably to be the coastguard and lighthouse
From the west the stronghold area was protected by a sharp and high klint and from the south by an arch-shaped stone wall. The courtyard of the stronghold is surrounded by a partially preserved low sodded wall.