Adamasta Rock

Adamasta Rock is an uninhabited undersea rock in Hong Kong, in the centre of the busy Adamasta Channel between the Chi [Ma Wan Peninsula] of Lantau Island and Cheung Chau island, in Hong Kong. It falls within the Islands District.
The rock is underwater during high tide and poses a major shipping risk because of its position in the center of the Adamasta shipping route. The Hong Kong [Marine Department] has set up a permanent beacon on the rock and placed two cardinal buoys on each side to alert vessels.
On Sunday, 8 May 2011, the river trader "Zhong Fu Fa Zhan" grounded on the rock.