The small island of Delos has one of the most important archaeological sites in Greece. The only way to visit the site is to take a one-day round-trip ferry from a nearby island. There is no accommodation on the island. Here is all the information you need to make your visit to this extraordinary archaeological site a memorable one, whether you are a Greek history buff or just a casual visitor. I strongly recommend that you purchase your ferry ticket in advance, especially in the peak months.