Ma Chau

Ma Chau island (Chinese: 孖洲, not to be confused with Ma Shi Chau island), is an uninhabited outlying island of Hong Kong located in the Soko Islands group about 4km south to Lantau Island.

Ma Chau

孖洲
Geography
Location	South of Lantau Island
Coordinates	22°10′20.1″N 113°54′02.1″E
Archipelago	Soko Islands
Total islands	1
Area	5.14 km2 (1.98 sq mi)
Length	0.470 km (0.292 mi)
Width	0.259 km (0.1609 mi)
Coastline	1.570 km (0.9756 mi)
Administration
Hong Kong
District	Islands District
Demographics
Population	0

Since June 2022, Ma Chau Island is designated as part of South Lantau Marine Park. The park aims to protect the Chinese White Dolphins and Finless Porpoises population around the Soko Islands.^[1]

Geology

According to the Civil Engineering Services Department, Ma Chau Island is composed mostly of Fan Lau Porphyritic Granite.^[2]