From Piraeus Port (Duration 3 to 5 hours) and Rafina Port (Duration 4 to 6 hours) , as well as from other islands of the Cyclades such as Ios, Mykonos, Naxos, Santorini, Amorgos, Milos, Tinos, Koufonisia, Sifnos, Andros, Folegandros, Schinousa, Donousa, Iraklia, as well as Astypalea and Crete with daily itineraries .