Corfu: Everything You Need to Know About the Idyllic Greek Island Paleokastritsa, Corfu. Credit: Greek Reporter Corfu is one of Greece’s most beautiful and storied islands. It shares its name with its most populous city, Corfu, which also serves as the capital of the Ionian Island archipelago along the coast of the Ionian Sea. Corfu has become a must visit place for anyone looking to experience what the Greek Islands have to offer. Its breathtaking scenery, mountain ranges and beaches are amongst the most unforgettable in the country, and its blend of cultural histories and influences –French, English, Venetian, and, of course, Greek — will leave you with a unique understanding of how the culture of the Ionian Islands developed.