While the very large cruise ships, carrying 3,000 and 4,000 passengers each, cause problems in finite destinations with limited infrastructure, such as Mykonos or Santorini, a new trend is emerging internationally and now in Greece as well: ultra-luxury vessels, which are more like yachts and less like cruise ships, with a number of passengers between 300 and 450, offering suites, large spaces and mainly personalized services and privacy. They promise unique experiences, offer almost anything the passenger asks for and carry out small private excursions for each couple or family, away from the crowds, planning each visit exactly as each client individually wishes. But they charge amounts for each suite that start at the level of 10,000 euros but in many cases go as high as 25,000 euros for a seven-day cruise. The company, which is a subsidiary of Marriott, has launched in the Aegean, the brand new luxury yacht "Ilma" with a capacity of 440 passengers, built in 2024, as well as two other vessels of similar characteristics, the "Evrima" with a capacity of just 298 passengers and the "Luminara" with a capacity of 450 passengers. The company is not the only one to enter this fast-growing sector of ultra-luxury travel, as Four Seasons, Orient Express and Aman are expected to include Greece in their sailings in the near future. Already Four Seasons has opened its booking system for Greece for 2026, and reportedly made its first pilot trip last year. The added value of passengers of this profile to local economies is at least seven times greater than that of typical cruise ship passengers.