A Sea Cliff full of Hexagonal Prisms Bluff Island, Basalt Island, Wang Chau, etc. are known as Ung Kong Group. Along Bluff Island by boat, you will see the spectacular sea cliff full of hexagonal prisms, gravel beaches formed by collapsed columns, as well as dark-grey basalt dikes that have intruded along columnar joints in the nearly upright hexagonal rock columns. #BluffIsland #BasaltIsland #WangChau #UngKongGroup #hexagonalprisms

Sai Kung boasts the longest stretch of coastline in Hong Kong, and the most numerous outlying islands. Some islands are so unique in natural scenery that they atom the sea like luminous pearls. Others feature extraordinary rugged profiles and rear up abruptly from the water. Sai Kung is a unique region of imposing rich geodiversity. These famous go sites include the magnificent sea stacks on Bluff Island, the breathtaking tubular rock columns and sea caves on Wang Chau, the t