Occurrence of Attributes in Original Text
The text related to the cultural heritage 'Ha Long Bay' has mentioned 'Tunnel' in the following places:
| Occurrence Sentence | Text Source |
|---|---|
| Dau Go is a single large tunnel descending along a major set of fractures to a massive choke. | WIKI |
| One of the most unusual features of Ha Long Bay is the Bo Ham lake group of hidden lakes and their connecting tunnel xe2x80x93 notch caves in Dau Be island. | WIKI |