The cove of Psérimos (Avlákia) is formed at the western shores of Psérimos and is open to the southwest. Its entrance is difficult to see, unless it is approached from the southwest. The northeastern shores of its head are sandy, with the village of Psérimos standing inland. A breakwater that is made of natural rocks is located at the northwest shores of the cove. The breakwater is 75 m and is set to the southeast. It protects the cove from the southwest winds.

The depths close to the quay are approximately 0.80 m and the depths at the inner part of the breakwater are approximately 4 m. A smaller breakwater, which is 20 m long, is positioned at the southeastern part of the cove’s head, at depths of 1 m close to its head and with rocks at its inner part.