One thing that I want to recommend is to visit the Museum of Prehistoric Thira in the main town of the island. Here you can find the frescoes found in Akrotiri. There are two museums almost one in front of the other: the other is the Archeological Musuem, which is rather small and somehow unimpressive. The frescoes on display in the Museum of Prehistoric Thira are truly astonishing, and they give an idea of the sophistication of the civilization. Historians and archaeologist are not yet sure if Akrotiri was an independent settlement with contacts with the Minoans or if it was an entirely Minoan colony.