Northeastern Waters
Northeastern Waters (71.9 km2) includes the Crooked Harbour, Double Haven (Yan Chau Tong), Starling Inlet (Sha Tau Kok) and north Mirs Bay. Double Haven Marine Park (680 hectares) becomes the first batch of marine parks in July 1996 under the Marine Parks Ordinance. A wide variety of landforms is found in the Northeastern Waters, includes bays, projecting headlands, peninsulas and rock cliffs. The waters are calm and sheltered, suitable for mariculture. There are 6 fish culture zones in this area: Sha Tau Kok, Ap Chau, Kat O, O Pui Tong, Sai Lau Kong and Wong Wan.
The Hong Kong coast is rather undeveloped in the Northeastern Waters. Good water quality with a calm oceanic environment has favored the development of high value biodiversity in marine habitats and communities. However, the development of Yantian Port in Shenzhen has once led to the deterioration of water quality. The governments of HKSAR and Shenzhen agreed on the scope and work of the “Mirs Bay Water Quality Regional Control Strategy Joint Study” in January 2000. Since then, there has been a significant decrease in nutrients, such as total phosphorus and total nitrogen.
Risk of red tide occurrence:
 Medium 30 - 70 % (Forecast for 2012-04-19)
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