Halong Bay - Cat Ba Archipelago has been recognized as a World Geological Heritage Site by The International Union of Geological Sciences (IUGS), together with 99 others in 53 countries in the world.

The site is included on the IUGS's list thanks to its outstanding global values of geological history and karst geomorphology. Halong Bay - Cat Ba Archipelago includes all stages of the marine submergence of tropical karst as well as three main types of caves - ancient marine frog-jaw caves, ancient karst caves, and frog-jaw caves. Halong Bay represents the later stages of the marine subduction while Cat Ba Archipelago adds important geological values to the heritage through its patterns of the terrestrial and intertidal stages. The appearance of Halong Bay - Cat Ba Archipelago and its unique and famous geological and geomorphological values today are the result of a regional tectonic movement that lasted more than 500 million years.

In 2023, at the 45th Session of the World Natural Heritage Committee, the UNESCO also recognized Halong Bay - Cat Ba Archipelago as the first Vietnamese inter-provincial World Natural Heritage Site.

Embark on the extraordinary 3-day-2-night cruise journey aboard our lavish overnight cruises - Ambassador Cruise I and Ambassador Signature Cruise, which leads to the UNESCO World Heritage Sites - Halong Bay and Lan Ha Bay.

Picture yourself sailing through iconic limestone karsts and emerald waters of Halong Bay, before seamlessly transitioning to the serene and less-explored Lan Ha Bay, where tranquility and natural charms converge to create a truly magical setting.

As part of this exclusive upgrade, guests will also have a chance to delve into the rich history, culture, and natural wonders of Halong at the captivating Quang Ninh Museum - one of the most renowned attractions in Halong City. This immersive experience will enrich your journey and provide you with a deeper understanding of this remarkable region.

We believe that this upgraded itinerary is not just a cruise; it is a transformative voyage that promises to create lasting memories and unforgettable moments. By sailing into this journey, our guests will not only witness the beauty of the two UNESCO treasures but also immerse themselves in a tapestry of experiences that will stay with you long.

We look forward to welcoming you on board for an unforgettable experience in Halong Bay and Lan Ha Bay.