This is the harbour on Simi or Symi (both are correct) island and is the harbour near the town. The ferries from Kos (or Rhodes via Kos) arrive in this harbour, giving some uncomfortable wash to yachts mooring there. The harbour personnel (orange t-shirts and blowing whistles) will guide you to a spot, as larger commercial vessels and Turkish Gulets get a spot closer to the marina entrance. Smaller boats are directed to the other end.