Ha Long Bay is one of the famous tourist destinations of the country of Vietnam, moreover, it is also a key tourist attraction of the whole North, with features of topography and scenery that Ha Long Bay always is the priority to be chosen for the tours, for the holidays. This is also a special place of Vietnam that has been recognized by UNESCO twice as the natural heritage of the world and is one of the ten new wonders of the world. Therefore, for foreign tourists, when talking about Vietnam, people often think of this special scenic spot.
Halong Bay is a small bay in the west bank of the Gulf of Tonkin, in the territory of Van Don district, Quang Ninh province. In terms of geographical location, Ha Long Bay is bordered by Bai Tu Long Bay to the Northeast, the West and Northwest are adjacent to the mainland and the Southwest is bordered by Cat Ba Island. With such a location, when visiting Ha Long Bay, it will be extremely convenient, because it is adjacent to the central area of ​​Van Don district, close to Hai Phong-Quang Ninh Highway. Moreover, coming to Ha Long Bay, tourists also have the opportunity to visit famous nearby landscapes, such as Cat Ba Island, or Bai Tu Long Bay, Bach Long Vi Bay.
In Ha Long Bay, there are two main types of sightseeing, which are sea tourism and visiting the natural cave system on the bay. However, these two types of tourism do not operate separately and combine to create unique types of tourism for tourists coming here. Visiting Ha Long Bay, visitors can not only relax, swim, play on the sea, but also experience a unique and equally interesting tourist space, which is visiting caves, entering the depths of those caves to feel the same magic of nature.
Regarding sea tourism, Ha Long Bay has a beautiful, very poetic sea with blue sea water, long white sand, where tourists can participate in swimming, enjoy the atmosphere and taste of the sea. Especially with family or a group of friends, this place is an interesting place, we can experience the new features, enjoy the comfort and comfort that the sea brings, with relatives. Love the experience, nothing can be more wonderful.
In each cave is also fitted with lighting systems to serve the needs of tourists, also to facilitate the process of moving in the cave, because the area in the cave is narrow, meandering according to the terrain. . The famous rock caves of Ha Long Bay that we can mention here such as Sung Sot cave, Thien Cung cave, Dau Go cave, Bo Nau cave, Trinh Nu cave...

"Phong Nha Cave is a world heritage site.The full name of that cave is Phong Nha-Ke Bang belongs to Ke Bang mountains in Quang Binh. Phong Nha-Ke Bang area is noted for its cave and grotto systems as it is composed of 300 caves and grottos, of which only 20 have been surveyed by Vietnamese and British scientists; 17 of these are in located in the Phong Nha area and three in the Ke Bang area. Phong Nha holds several world cave records, as it has the longest underground river, as well as the largest caverns and passageways.

The park derives its name from Phong Nha cave, the most beautiful of all, containing many fascinating rock formations, and Ke Bang forest. The plateau on which the park is situated is probably one of the finest and most distinctive examples of a complex karst landform in Southeast Asia. This national park was listed in UNESCO’s World Heritage Sites in 2003."