Delos, a small Greek island with no permanent residents, is a UNESCO World Heritage site renowned for its ancient ruins and historical importance. Located in the Cyclades, it is accessible via ferry from nearby islands like Mykonos, with four daily departures between April and November. Unlike more tourist-heavy destinations, Delos remains largely untouched by commercial development, meaning there are no souvenir shops, restaurants, or other typical tourist amenities. Visitors are encouraged to bring their own food and drinks, as the only refreshments available are from a vending machine and a bar on the ferry. Historically, Delos was a central hub of religious and commercial activity in ancient Greece, believed to be the birthplace of the deities Apollo and Artemis. It thrived as a major port during Roman times but was abandoned following attacks in 88 and 69 BC. Archaeological work on the island began in 1872, and despite significant findings, much of Delos's history remains unexplored. However, rising sea levels threaten future discoveries, according to a study by geoscientist Enes Zengin, who warns that parts of the island could be submerged in the coming decades. Despite its lack of modern conveniences, Delos attracts visitors interested in its rich history and serene atmosphere. Cruise lines such as Celebrity Cruises, Royal Caribbean, Variety Cruises, and Star Clippers include Delos in their itineraries, offering excursions that typically cost between £80 and £100 per person, covering a round-trip ferry and a guided tour. For those preferring a more independent visit, a return ferry ticket from Mykonos costs around £25, with an additional £10 for entry to the island. Delos offers a unique opportunity to explore ancient Greek civilization away from the crowds of more popular destinations. Its historical significance, combined with the opportunity to witness ongoing archaeological research, makes it a compelling destination for history enthusiasts and travelers seeking a more authentic experience. However, the island's vulnerability to climate change underscores the importance of preserving its heritage for future generations.