Seajets: Naxos, Santorini, Syros and 16 other ports. Hellenic Seaways: Aegina, Agistri, Hydra and 10 other ports. Blue Star Ferries: Naxos, Santorini, Syros and 40 other ports. Aegean Flying Dolphins: Aegina and Agistri. Saronic Ferries: Aegina, Agistri, Poros, Methana and Souvala (Aegina). Magic Sea Ferries: Aegina, Agistri, Hydra, Spetses, Poros, Porto Heli, Methana and Agia Marina (Aegina). Fast Ferries: Santorini, Milos, Ios, Serifos, Folegandros, Sifnos, Sikinos and Kimolos. ANEK Lines: Milos, Heraklion, Serifos and Chania. And five other companies.