The elongate Bluff Island, which is oriented northeast to southwest, reaches a maximum elevation of a little over 140 meters.
The island is asymmetrical, forming a high ridge on the south-eastern side with a cliffed coastline.
Fan Tap Pai (番塔排) in the south of the Island is one of the most spectacular coastal scenes in Hong Kong.
This huge sea cave cuts right through the island and it is just wide enough for a boat to sail past.
[citation needed] An open U-shaped bay, Ung Kong Wan (甕缸灣), is located at the north of the island.