Did you know?

Pineapplefish are poor swimmers! Their small spiny fins and rigid armour makes them slow, but their rounded body makes them buoyant, perfect for hovering in a cave all day!

Pineapple Fish

Named for its prickly skin and uncanny resemblance to a pineapple, the pineapplefish also has a heroic side. It is also known as the knightfish, because its tough scales look like the chain-mail armour worn by medieval knights in their battles for glory! It makes sense then that its scientific name, Cleidopus gloriamaris, comes from a Latin term meaning ‘glory of the sea’.

The pineapplefish has luminous lips that glow brightly, especially at night, luring curious creatures right into its mouth! The glow comes from a small light organ found on each side of the lower jaw. These organs contain colonies of microscopic marine bacteria that are the source of the luminescence. When juveniles the colour is usually a greenish yellow, however this changes to an orange or red as the pineapplefish matures.

Leafy Seadragon

Seadragons get their name from the fiery and fierce dragons of story books – although they are not fierce at all! Decorated with plant-like leafy appendages they can easily hide amongst seaweed.

Seadragons are true bony fish – just like tuna or salmon! They have gills, a bony skeleton and fins. When born, seadragons are the size of your fingernail with black and white markings. As they get older, they become a yellow-brown colour and grow up to 50cm long.

Seadragons eat up to 1000 mysid shrimps every day! With a rapid snap of the head, thesetiny shrimps are sucked into the long tubular, toothless snout before being swallowed whole.

Did you know?

Male seadragons are the only fish to carry eggs on their tail!

Daisy coral & Old wives

Old wives are named for the grunting sound they make when caught by fishermen and their teeth are ground together. The old wife has small, sharp spines on its pectoral and dorsal fins. It is often seen swimming in schools.

Corals are a colony of tiny animals, not plants, called polyps. Polyps look like an upside-down jellyfish, with a cup shaped body and tentacles around the rim. Like a jellyfish, their tentacles contain stinging cells that help them to catch food.

Western blue Devil

The western blue devil is one of WA’s most distinctive and beautiful fish. A common inhabitant of our southern coastal waters they are renowned for being highly territorial.

This brilliant deep blue fish is easily recognised by the iridescent blue spots densely covering the body and is one of WA’s most distinctive and beautiful fish. It reaches a maximum size of 36 cm. Found our southern coastal waters the Western Blue Devil is one of the most spectacular residents of deeper crevices under larger rocky offshore reefs and drop-offs, they are renowned for being highly territorial. Often occurring as solitary individuals, and tending to be slow swimmers making small loops from deep within crevices. Juveniles are a paler blue, and can be almost white. Adults often curious and unafraid of divers.

Did you know?

When they are scared, they will hide in nearby rubble or caves and turn almost completely black

27° 42' 40.8456'' S, 114° 9' 52.8768'' E


Descend into the icy waters of the Great Southern, where wind and waves from Antarctica shape isolated granite shores. Protected amongst the granite boulders are idyllic sheltered bays with snow white sandy beaches and crystal clear seas.

This breathtaking mix of rugged power and intricate beauty is reflected below the waves with the iconic great white shark and the leafy seadragon. Added to the mix are complex communities of sponges and corals that colonise caves and jetties.