While Santorini is famed for its dramatic sunsets and vibrant nightlife, Kefalonia attracts visitors with its quiet charm, historical sites, and tranquil, uncrowded atmosphere. Melissani Cave, an underground lake with piercing turquoise waters, is a must-see. Visitors can take a boat trip to take in the striking cavern.

Greek Prime Minister Kyriakos Mitsotakis has urged people on the island of Santorini to "stay calm" after an increase in seismic activity. His remarks come as schools were told to close on Monday and authorities advised against large gatherings in enclosed spaces across the island,