Schools of regal demoiselles can be found all over Hong Kong.

There are bright colors undewater, and yes, this really is from Hong Kong: Breaker reef.

Lionfish often hover above the reef. They're pretty, but their spines are venomous.

Common rockfish is aptly, albeit boringly named fish. It is, well, very common fish in Hong Kong. You'll see these wherever there are rocks underwater.

Stonefish masquerades as a stone and is often difficult to spot. A good reason not to slam your hands wherever...

Sharp Island is a commonly used training site for Open Water Course's certification dives in Hong Kong.

Algae growth gives Hong Kong waters a greenish hue.

We can guarantee that you'll see plenty of crabs when you dive in Hong Kong.

Sharp Island is a home to various types and species of corals.

Car tires have been sunken to form artificial reefs and encourage coral growth.

Clark's anemonefish, yellowtail clownfish - or just Nemo to friends. You'll see plenty of these when scuba diving in Hong Kong.

A clownfish hiding between anemome tentacles.

A tiny see-through shrimp that you can see hiding between anemone tentacles.

Despite their plant-like appearance, anemones are animals.

Corals come in various colors.

A scuba diving course in process. Hong Kong waters offer very good scuba training sites for navigation exercises...

Compass navigation exercise in PADI Advanced Open Water Diver course.

Wrecks - cars and boats - turn into artificial reefs over time and are a home to many species.

Bits and pieces of cars remain at Lobster Bay now blending into the environment.

Nice hovering... and photobombed by fish. The visibility underwater wasn't great the day this picture was taken.

Once common, seahorse is now endangered, but divers do occasionally spot them in Hong Kong.

Frogfishes are weird looking creatures and come in variety of colors.

Moray eels lurk in crevices or holes in the sandy bottom. You'll have to go slow and look carefully to see them.

Moray eels can often be found in a seemingly barren sandy bottom.

Flounder observing its surroundings. This one was photographed at Chek Chau (Port Island).

Lobster Bay is one of the commonly used shore dives sites for scuba diving training in Hong Kong.

A closer inspection revealed that this starfish had just had a sea urchin for lunch. It wasn't a high speed chase.

There are more than 80 species of hard and soft corals in Hong Kong waters.

This startfish has lost a couple of legs. Don't worry though: they'll grow back.

A fish with wings.