Ha Long Bay – Cat Ba Archipelago: A Symphony of Stone, Water, and Biodiversity

Ha Long Bay – Cat Ba Archipelago is Vietnam’s first inter-provincial World Natural Heritage site recognized by UNESCO, covering a vast area of 65,650 hectares with a system of 1,133 majestic limestone islands. This heritage site is considered the world’s largest and most representative example of sea-invaded tower karst topography, as well as a globally significant area for fengcong (cone karst) and fenglin (tower karst) formations.

The site’s characteristic aesthetic beauty is woven from a dense network of vegetation-covered islands and towering limestone pillars rising from the emerald sea. The Cat Ba Archipelago offers breathtaking landscapes with vertical cliffs plunging into the water, extensive cave systems, and notably, unique inland saline lakes—a hallmark of the region’s geomorphological processes.

Scientifically, the heritage site displays a complete record of Earth’s evolutionary stages under humid tropical conditions over millions of years of geological history. Cat Ba’s pristine interior hosts vital limestone forest ecosystems and serves as the sole habitat for the Cat Ba Langur—a critically endangered endemic primate and the conservation icon of the archipelago. Furthermore, it is home to numerous other endemic and rare species, such as the Ha Long Palm, the Cat Ba Tiger Gecko, the Small-clawed Otter, and the Serow.

Determined that heritage preservation is the top priority, Cat Ba National Park is committed to strictly implementing sustainable management strategies. Current management efforts focus closely on monitoring economic activities, ensuring the equitable participation of local communities, and maintaining tourism development levels within the region’s ecological carrying capacity. The ultimate goal is to safeguard the landscape’s integrity and its Outstanding Universal Values for generations to come.