Σαντορίνης, or Santorini, is a picturesque island in the Aegean Sea, part of the Cyclades group of islands in Greece. Known for its stunning sunsets, white-washed buildings, and blue-domed churches, it attracts millions of tourists each year. The island was formed by a volcanic eruption, which created its unique caldera and dramatic cliffs. The main towns on Σαντορίνης include Fira and Oia, both offering breathtaking views of the sea. The island is also famous for its local wines, particularly the Assyrtiko grape variety. Visitors can explore ancient ruins, relax on beautiful beaches, and enjoy delicious Mediterranean cuisine.