REMOVE

1. Waterways
2. Sea Charts
3. Manuscripts
4. Guangdong Sheng (China)
5. Shangchuan Island
6. Pearl River Estuary (China) …
7. Luzon (Philippines)

WHAT

1. Coasts (1)

WHERE

1. Guangdong Sheng (China) (1)
2. Luzon (Philippines) (1)
3. Pearl River Estuary (Chin … (1)

WHO

1. Anonymous (1)

WHEN

1. 17--? (1)