If you're someone in love with the idea of beach weddings, then surely Santorini weddings have crossed your mind. Sitting in the southern portions of the Aegean Sea, Santorini is an island southeast of Greece's mainland, one of the largest of the archipelago that is the remains of a volcanic caldera. The municipality of Santorini itself is made up of the islands of Therasia and Santorini, along with the uninhabited islands of Christiana, Aspronisi, Palaia, and Nea Kameni.