Hoi Ha Wan (海下灣) - the Bay Beneath the Sea - in the north of the Sai Kung Peninsula, is one of Hong Kong's best places for hard corals, with around 60 species.
Eighty-five kilometres due east of Sai Kung in mainland Chinese waters lies an isolated rock pinnacle swept by deep oceanic currents and covered in colourful marine life. The rock finds itself at the centre of some of the most intense and destructive fishing pressure within the South China Sea.
During periods of calm weather when fishing is more favourable Chinese fishermen hurl packets of dynamite at the rock or drop pillow-sized bombs onto some of the deeper pinnacles. Gill nets ring the islands, lines of hooks crisscross the rocky bottom and underwater spearfishers by the boatload come from Hong Kong dressed in camouflage wetsuits and fire upon anything that moves.
All this is particularly alarming considering the rock is only 200 metres in circumference.
Tung Ping Chau is set in the east of Mirs Bay. Though only 2km long, and relatively flat (rising to just 48 metres), Tung Ping Chau makes for a cracking - and relaxing - day out, or even overnight stay.