Hoi Ha Wan
Hoi Ha Wan (Chinese: 海下灣; pinyin: Hǎixià Wān) or Jone's Cove is a bay at the north of Sai Kung Peninsula. It is a marine park in Hong Kong.
The location has a high biological value, as it shows significant biodiversity. That is because the Park is a sheltered bay with pristine water quality, so that it provides a good marine environment for housing a great variety of marine organisms. Numerous kinds of corals can be ascertained under the sea, and it is a hot spot for diving. So as to keep the local ecosystems away from human intervention, fishing, particularly bottom trawling and uses of dynamites or poisons like cyanides, collecting sea products and corals are prohibited by law.
Like the nursery grounds in Mai Po, Ho Ha Wan also offers a mangrove community occupying about 5,300 square metres (57,000 sq ft). Along with a buffer zone between the tidal waters and the land, the mangrove woods are commonly act an ecologically sustainable habitat for juvenile fishes and other intertidal and subtidalinvertebrates.
Hoi Ha Wan Marine Park has lush coral communities. Most of the stony coral species recorded in Hong Kong can be found in this marine park. 100-odd species of reef-associated fishes have been recorded in Hoi Ha Wan. In addition, records of wide variety of marine animals, like starfish and jellyfish, in the Park further demonstrates its ecological significance.
Reef Check through AFCD  performed by local British Sub-Aqua Club diving enthusiasts 'Ydive' , and Li Po Chun United World College's Coral Monitoring Team has annually monitored coral & marine life variety & density since 1992.