Basalt Island

On 21 December 1948, Basalt Island was the site of the first commercial airliner crash in Hong Kong,[3] in which all 28 passengers, including five women, one child and seven crew, were killed.

CNAC flight XT-104 from Shanghai to Hong Kong Kai Tak Airport was operated by a C-54 Skymaster.

[4] Quentin Roosevelt II, the grandson of American president Theodore Roosevelt and then Senior Vice President of China National Aviation Corporation (CNAC), and Paul Yung, elder brother of Rong Yiren who was later to become Vice-President of the People's Republic of China, were among the casualties.

[5] The Ung Kong Group Special Area (甕缸群島特別地區) covers 176.8 hectares and was designated in 2011.

[7] The geology of the area is characterised by volcanic rocks of the Cretaceous periods.