Visually spectacular. Must be approached by sea to get the full effect of sailing into a giant crater so don't fly there and arrive before dark. Thira is very touristy, Oia is a little quieter. The daytime action is at the beaches, Perissa and Kamari. Good Raki and domatokeftedes (fried tomato-balls). Ruins of Ancient Thira are worth the trip if you are unimpressed by the most spectacular sunsets on this planet.  Most people want to stay on the cliffs overlooking the volcano in Thira or Oia but if you have children and want to get a good nights rest you may want to go somewhere less spectacular like the village of Akrotiri where you won't be worrying about your children happily playing on the edge of a 1000 foot cliff. Thira is a fantastic place to visit but I would not want to live there. The ferry ride is about 10 hours with stops along the way at Paros, Naxos and Ios and sometimes Sifnos. Daily connections to Mykonos by ferry and the rest of the Cyclades in the summer by Flying Dolphin. There are also less frequent connections to Crete, Thessaloniki, Rhodes, Karpathos, Milos, Folegandros, Kassos and Halki. There is also an international airport.