Ha Long Bay, located in the Gulf of Tonkin, is formed of some 2000 or more incredible islands and islets rising from the emerald waters of the Gulf of Tonkin and freshwater swamp forests. Geographically, Halong Bay spread approximately 1,500 square kilometers in north Vietnam with a 120 kilometer of coastline in the Gulf of Tonkin, near the border with China, and 170 kilometers east of Hanoi.. Because of their precipitous nature and exceptional esthetic values, the bay is famous worldwide with its stunning network of thousands of monolithic limestone islands that jut up from its calm waters. These tiny islands are dotted with beaches and grottoes created by years of wind and waves and have sparsely forested slopes ringing with birdsongs and serene nature tunes which make truly breathtaking majestic mighty scenery.
Lan Ha Bay : Located south of Halong Bay, Lan Ha Bay is by far the smallest of the three primary bays in the area. It comprises around 400 limestone islets spread over 76 km2, and is just as pleasing to the eye as Halong Bay.
Lan Ha Bay features the same jaw-dropping landscape of towering karst outcrops that tourists typically associate with Ha Long and if it weren’t for the conspicuous absence of crowds in Lan Ha Bay, you probably wouldn’t be able to tell the difference between the two bays.
Because of its distance from Halong City and the main tourist wharf, the popularity of Lan Ha Bay never really took off as it did for Halong Bay in the 1990s, and Lan Ha has remained in the shadow of its celebrity neighbour ever since.