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Along with 99 other locations in 53 countries around the world, Ha Long Bay (Quang Ninh) – Cat Ba Archipelago (Hai Phong) has been officially recognized by the International Union of Geological Sciences (IUGS) as a World Geological Heritage.
The Ha Long Bay – Cat Ba Archipelago International Geoheritage was recognized for its two outstanding global values of geological history and karst geomorphology (geomorphology of characteristic disintegration patterns often marked by underground cave drainage systems).
The International Union of Geological Sciences is expected to announce the list of 100 IUGS Geoheritages at the 37th International Geological Congress (IGC) taking place from August 25-31, 2024 in Busan (Korea).
Ha Long Bay – Cat Ba Archipelago is considered a geological museum.
Ha Long Bay has been recognized twice by UNESCO as a World Natural Heritage (in 1994 and 2000). Ha Long Bay – Cat Ba Archipelago is also recognized by UNESCO as the first inter-provincial – municipal World Natural Heritage in Vietnam (in 2023).
Cat Ba Archipelago (Hai Phong) is an excellent example of a mature karst landscape under hot, humid, monsoon tropical conditions and in the recent past has been invaded and transformed by the sea.
Tourists explore caves and geology in Ha Long Bay – Cat Ba Archipelago
Ha Long Bay (Quang Ninh) has a diversity of terrain elements such as: mountainous islands interspersed with deep sea bays, the contrast of coastal mangrove forests and limestone islands with steep cliffs.
Ha Long Bay – Cat Ba Archipelago includes all stages of marine submergence of tropical karst as well as three main cave types (ancient marine frog-jaw caves, ancient karst caves and frog-jaw caves). Ha Long Bay represents the later stages of marine submergence. Cat Ba Archipelago adds important geological values to the heritage through its examples of terrestrial and intertidal stages.
Tourists experience the road across Cat Ba island to explore the wild nature and experience interesting activities.
The appearance of Ha Long 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. That is also the reason why UNESCO has recognized Ha Long Bay as a world natural heritage three times./.