This post was originally published on this siteWherever Crystal Serenity sails it is a beautifully curated voyage of refined luxury: spacious interiors, impeccable service, exceptional culinary experiences and, obviously, as it says on the hull, serenity. On Crystal Serenity every day is a memorable occasion. Whether you are seeking sun-drenched decks, elegant lounges, cultural enrichment or simply the perfect vantage point to take in the adventure of another horizon, Crystal Serenity offers it all.  1. Unrivalled space and comfort On some ships you queue. Never on Crystal Serenity. Her maximum of 740 passengers enjoy a higher space-to-guest ratio than most other ships. In the bars, library and lounges you can always find a quiet corner for a book, coffee, or cocktail. Another advantage of a small ship is the ease of embarking and disembarking, no queuing for the gangway or tender. 2. Impeccable, personalised service  The guest to staff ratio approaches a luxurious 1 to 1 level. From the moment you aboard and your butler introduces himself, the level of personalised attention sets a tone of effortless luxury.  Equally, the crew enjoy having time to get to know the guests and their tastes, remembering your favoured cocktail, how you like