Like all the best cities in Greece, the list of places to visit in Thira is rich with history and legends, and as you travel around the island, you'll feel like you're traveling back in time. One of the first things to see in Thira is the Akrotiri, a famous excavation with astonishingly well-preserved multi-story buildings, streets, and squares buried in the solidified ash of a volcanic eruption. Indeed, if you're interested in the history of ancient Greece, you'll find a wealth of Thira activities. The Archaeological Museum, the Maritime Museum, the Prehistoric Museum, and Archontiko Argyroy are all great Thira attractions for the historically-minded tourist.
But forget the history...what about the present? Modern day attractions in Thira tend to center around the beautiful waters of the Mediterranean Sea. Red Beach is spectacular thanks to its fine red sand and the beauty of its rocks, so add it to your list of stuff to do in Thira. We also have the White Beach and Perissa Beach.
The Church of Vothonas, the Catholic Cathedral, and Akrotiri Lighthouse are all things to do in Thira if you're interested in monuments from a historical period later than Ancient Greece.
And of course, no list of what to do in Thira would be complete without mentioning the thermal hot springs of Nea Kameni and its red waters that flow underground. Travel by boat, passing Nea Kameni volcano, to reach them.