Mykonos lies almost in the center of the Cyclades islands (Cyclades means the circle islands, because they form a circle around Delos). The closests islands are Delos, Serifos and Sifnos to the SW, Tinos and Andros to the North, Mykonos, Naxos, Ios and Santorini to the South, Syros to the West and Ikaria to the East.
Cosmopolitan island, famous the last decades from the international jet set visitors that spend here their holidays. Mykonos beaches are magnificent, the nightlife surprising and Delos a couple of miles away (this is probably the reason that brought tourism on the island in the first place).
Mykonos is connected to Piraeus, Thessaloniki, Crete, Rhodes, Kos and all the major Cyclades islands (Mykonos, Mykonos, Naxos, Ios, Sifnos, Milos, Syros) by boat and Athens and many countries direct by plane.
The trip by ferry from Piraeus takes about 5 hours. In summer there is flying doplhin (high speed boat) service from Piraues or Rafina. A local boat service takes visitors from Mykonos to nearby Delos.