Osprey Reef
Australia · Coral Sea
A remote coral atoll rising from the deep Coral Sea some 350 kilometres from Cairns, Osprey Reef delivers world-class shark encounters, dramatic wall diving, and oceanic pelagic action that liveaboard divers travel the globe to experience. The reef's isolation keeps it pristine, with visibility often exceeding 50 metres in the crystalline open-ocean water.
How this reef is doing
ⓘ How we measure thisReef state
Live science signals for this reef are still being gathered.
Coral cover
Fish life
More fish than a healthy reef of its kind.
Heat
Fishing
Some fishing is allowed here, in marked zones.
Sources · Reef Life Survey · Global Fishing Watch and reef gravity
What you will see
11 species across the dive sites here
Pyramid Butterflyfish
Seen 5 months ago
at Entrance Bommie
Least concern
Potato Rockcod
Seen 8 months ago
at Entrance Bommie
Least concern
Sharksucker
Seen Jun 2025
at Entrance Bommie
Least concern
Whitetip Reef Shark
Seen Jan 2025
at Entrance Bommie
Vulnerable
Grey Reef Shark
Seen Dec 2024
at Entrance Bommie
Endangered
Dogtooth Tuna
Seen Oct 2024
at Entrance Bommie
Least concern
Coral Grouper
Seen year round
at The Cathedral
Least concern
Eagle Ray
Seen year round
at The Cathedral
Endangered
Lionfish
Seen year round
at The Cathedral
Least concern
Napoleon Wrasse
Seen year round
at Entrance Bommie
Endangered
Oceanic Whitetip Shark
Seen year round
at Entrance Bommie
Critically endangered
