The trail is not marked, and it is hard to observe. You need to go to the left at a crossroad, into the forest, and after ~200-300 meters you need to take left again, upwards on the hill. The fortress ruins are on the top of the hill.
나만 알고 있는 정보가 있다면 로그인하여 다른 모험가에게 도움이 될 만한 팁을 추가해보세요!