| Wormhole Library 云洞图书馆 | |
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| 20°02′55″N 110°18′44″E / 20.0487°N 110.3121°E | |
| Location | Haikou, Hainan, China |
| Type | Public library |
| Established | 2021 |
| Branches | 1 |
The Wormhole Library or Cloud Hole Library (Chinese: 云洞图书馆) is a public library in Haikou city, Hainan, China. It is located on the southeast shore of Haikou Bay, about 100 M west of Haikou Century Bridge, in Century Park.
