The massive entrance
Semcap is the best natural wall you can find. The western parts of the cape there are high cliffs (200 feet), which are guarded by men in the Kalkyrian fortress. And the eastern edge of it is the opposite, a clean quiet beach where the fishermen of Khuuport anchor their small vessels.
Lethys was built on five hills and Cape west is one of them (Semcap, Elftown, East and South are the other four). There are only an unvisitable brushwood on the hill and the huge tower of Kalkyrian in the harbour entrance.