What are the nicknames of the Pearl River Estuary?

The Pearl River Estuary is adjacent to the Taiwan Province Strait in the east and Qiongzhou Strait in the west, which is an important naval base in South China. Humen in the Pearl River Estuary is known as the "Golden Lock and Copper Pass". There are many islands and waterways outside the estuary, among which Wanshan Islands surround the whole Pearl River Estuary, which is a multi-layer maritime barrier of Guangzhou Port. Relying on these islands, we can control the Pearl River Estuary and Hong Kong and become the key to the Pearl River Estuary.

Wanshan Islands are composed of Dangan Islands, Jiapeng Islands, Wanshan Islands, Gaolan Islands, Sanzao Island and Guishan Island. Located in the south of Hong Kong, Dangan Islands is an important maritime support point to defend Hong Kong and the Pearl River Estuary. Jiapeng Islands, located at the most advanced outpost of the Pearl River Estuary, can form a fire net with the surrounding islands and control the inlets of various waterways east of the Pearl River Estuary and west of Hong Kong.

Wanshan Archipelago is the largest of Wanshan Archipelago, located in the south of the Pearl River Estuary, which controls the entrances of various waterways in the Pearl River Estuary and is the most important maritime barrier to defend the Pearl River Estuary and Guangzhou.

Dawanshan Island is the main island of Wanshan Islands, with dangerous terrain and prominent position. It has always been an important fortification. 140 years ago, Lin Zexu built a fort here to resist the British invasion. Located in the westernmost part of Wanshan Islands, Gaolan Islands control the inland waterway leading to Guangzhou.

Sanzao Island is the largest island in Wanshan Islands, close to the mainland, which is of great significance for guarding the Pearl River Estuary and the delta region. Guishan Island, located in the east of the Pearl River Estuary, is the gateway to the sea for Guangzhou, Huangpu and Pearl River ports, and also the main air and sea passage from Hong Kong to Macao, and its position is very important.