Blue Groper - weight up to 50 kg and length of over 1m, found in rocky reef areas along the east coast of Australia

Leafy sea dragon - Found along the southern and western coasts of Australia, grows to about 20–24 cm

White's seahorse - Common in Sydney Harbour, grows to 20 cm in length

Blue-ringed octopus - One of the prettiest but deadliest animals in the world.

Blue-ringed octopus - Tiny but deadly

Bue-ringed octopus - Don't touch me or you will DIE!!!

Wobbegong shark - are bottom-dwelling sharks, spending much of their time resting on the sea floor. Most species have a maximum length of 1.25 m

Wobbegongs are generally not considered dangerous, but have attacked swimmers and divers who inadvertently come close to them. The Australian Shark Attack File contains more than 50 records of unprovoked attacks by wobbegongs, but none of them fatal.