Lavrio has the second largest sea port after Piraeus. The last few years the port has changed a lot and has become a hub for ferry boats, cruise ships and sailboat companies. From the port of Lavrio the visitor can be transported to the nearby island of Kea, Kythos, Syros, Tinos, Andros, Amorgos, Anafi, Folegandros, Io, Kimolos, Milos, Mykonos, Naxos, Paros, Sikinos, Cyprus and Kavala.