Wave-cut "benches" of 6 to 10 meters wide form along the sediment layers at Crooked Harbor and Ping Chau, which are uncommon elsewhere in Hong Kong's coastline.[2]
Eelgrasses discovered at Lai Chi Wo in 1977 were granted protection by the Agricultural and Fisheries Department of the Hong Kong government. Periclimenes demani, a small species of shrimp, resides in this grass.[2]: 250
Historical event
On 8 June 1857, a British naval frigate encountered pirates at Crooked Harbor, 70 men leapt overboard and were massacred on land.[3]