Pac Bo cave is in the most north-eastern part of Cao Bang province, next to the Chinese border. It is a very important site for Vietnamese, as it is seen as the starting point of the revolution that led to th independence of Vietnam. The reason for it is very simple – this is the place where Ho Chi Minh returned to Vietnam and stayed here for a few weeks. It is claimed that he started his campaign he planned for a long time. If you ar interested in history, this is an interesting site. But even if you are not interested in history, Pac Bo is a worthwhile destination due to the beautiful setting
How to get there
From Cao Bang it is around 60km to get to Pac Bo. I do not know if there buses going to the cave, or just to the village a few km before the cave. You could get an Xe On for that route (not sure about prices), or the easiest option is hiring a bike for a day to go there by yourself.
If you ride there on your own follow the QL3 out of Cao bang until you get to a large round inside town. Take the second exit (the one before you get back to the QL3). You are now on the Hoi Chi Minh Trail (TL208), just follow it for the next 60km. The road is in good condition, flat, and offering some nice views of the mountains on both side and lots of rice fields. THe scenery reminds one more of the Mekong Delta than the mountainous area. On the way you pass some villages with shops and food places for food and drinks. At the end of this road the rice fields to your left disappear continue going ahead following a little river. After passing a pagoda on a hill on your left ride through the gate and follow the dirt road down the hill. Turn left at the next crossing, and then right into another path. This path follows another stream. It will bring you to the entrances, where you can find spaces for your bike.