Celebrity Cruises has reopened bookings for 33 exclusive Rhine and Danube sailings in 2027 after the first priority window sold out in just six minutes. The voyages will take place aboard the new river vessels, Celebrity Compass and Celebrity Seeker, both designed with Edge Class-inspired luxury features, panoramic decks, and immersive itineraries. With high demand expected, this second booking opportunity is limited, offering travelers a rare chance to secure premium river cruise experiences.