As the province is in the region where the Vietnamese people lived thousands of years ago before their southwards expansion, Cao Bang has several points of historical interest as well as many natural features.
Pac Bo or Coc Bo cave
Pac Bo (Ho Chi Minh’s Hide-Out) Most sights dedicated to Ho Chi Minh are geared to Vietnamese tourists and are of little interest to Westerners. Pac Bo follows the party line. Pac Bo is the site where, returning to Vietnam after more than 30 years of exile, a fired-up Ho Chi Minh began planning the revolution in 1941, living in caves and protected by local people. The approach to the site is lined with big concrete pavilions and walkways. An open parking area gives way to paved paths along the picturesque Lenin River at the foot of the Karl Marx Mountain (Ho Chi Minh named them him-self). Paths take you to some small cave sites, and signs lead the way to places where Ho wrote, slept, and ate.
Ban Gioc Waterfall
The waterfall originates from Quay Son River. On the Vietnam side, the river has a picturesque scenery, fresh environment with grass cover, evergreen forest, bobbing white clouds mingling with the peaceful atmosphere of villages of mountainous ethnic minorities. On the other side is the neighboring country of China.
With a height of 53m and a width of 300m, the waterfall is divided into 3 layers consisting of small and large upper flows. Large water blocks fall into limestone steps, making a curtain of white sprays. From the distance, visitors can hear the roaring of waterfall echoing through a large area.
Rising from middle of the waterfall is a large water mound covered with trees, splitting the river into three spouts that look lie three white silk strips. At the foot of the waterfall is a large river that is calm as glass surrounded by many precious flowers. On hot summer days, it is still cool here. Every early morning, the sun shines through steam creating a sparkling rainbow.
Ban Gioc waterfall has gone into the plastic arts through excellent works of painting and photography. As a companion of the mountains, rivers and absorbing grottoes around it such as Nguom Ngao, Ban Gioc waterfall is and appealing site for tourists.
Nguom Ngao cave
It is discovered in 1921 by local people then opened for tourists since 1996. With the length of 2,144m, Nguom Ngao cave is relative enormous, includes three main entrances. Now, Cao Bang Province only exploits 900m. The scenery in the interior of the cave is as picturesque as that of a fairly land. Visiting cave, tourist come in Nguom Luom entrance and go out Nguom Ngao entrance.
Go inside the cave, visitors will be dazzled by wonderful sparking seven-colored stalactites hanging down from high stone cliffs. Nature is clever to create stone statues of which some look like human bodies, some look like forest plant, animals, a fairy combining her hair or a lotus bulb, etc. Visitors can feel the harmony between stone and water.
Cave roof is continuously closed and open, giving the tourists a big surprise. Stalactites seem to grow from the soil, or hang down, vertical or horizontal with small and big figures piled and fixed in a hustle.
Nguom Ngao Cave with its primitive beauty creates a natural landscape that is not only magnificent, attractive but also full of Viet Bac distinction. It has been awarded as a national landscape by the Ministry of Culture and Information, drawing attention from domestic and foreign tourists to visit.
From 2006, there are asphalted road from Highway 206 to Nguom Ngao site and cement ways spreading inside cave combined with light systems.
Thang Hen Mountain Lake
Thang Hen mountain lake, in Tra Linh district, consists of 36 small natural lakes located on the top of a hill at 1,000 metres (3,300 ft) elevation. The lakes have been created in limestone formations and some of them flow out as steams. An unusual feature of the lakes is that their water level fluctuates like the tides of the seas, which phenomenon is attributed to the springs of water emerging from artesian wells in lime stone formations. The lakes flow through the river, which eventually becomes the Ban Gioc Waterfall.