Ha Long Serenity Cruise.In the name Serenity Cruises.What does the word “Serenity” imply? It implies the style and ethos of our cruises, appealing to a certain type of person.Whilst some cruises appeal to a fun-loving crowd, Serenity Cruises draw a quieter, more style-conscious customer.They are cruises for discerning people who dream of floating on a calm, azure sea, among limestone peaks under boundless skies. Cruises designed for self-contemplation, to discover your inner resources and how strong your connection is with nature and local culture.