Dive sites by region · 2026 guide
Australia's busiest reef-access port, with the widest choice of day boats, liveaboards and certification courses.
These are the 3 Cairns sites in our database, best-documented first, with the operators who run trips to each.
1Cairns, Queensland
The reef systems reached daily from Cairns — the most-dived section of the Great Barrier Reef.
Coral cover, fish density and crowding vary considerably between them. The reefs closest to port see the most traffic; the outer reefs generally offer better coral and clearer water in exchange for a longer steam.
Look for: Green Turtle, Queensland Groper
Full Great Barrier Reef (Cairns Outer Reefs) guide →
2Cairns, Queensland
Isolated atolls beyond the Great Barrier Reef with vertical walls and exceptional clarity.
The attraction is visibility and walls. Clarity of 40 metres and more is common, and the drop-offs fall away into thousands of metres of open ocean.
Look for: Dwarf Minke Whale, Potato Cod
Full Coral Sea (Osprey and Bougainville Reefs) guide →
3Cairns, Queensland
A chain of ten outer-barrier reefs including Cod Hole — liveaboard territory.
They include Cod Hole, where large potato cod have been habituated to divers for decades, and Steve's Bommie, a pinnacle that ranks among the most photographed sites on the Great Barrier Reef.
Look for: Dwarf Minke Whale, Potato Cod
Full Ribbon Reefs guide →Sites are chosen from our dive-site database and ordered by how well documented they are: flagship status, the number of operators we have confirmed dive there, and the marine life recorded. Nobody pays to be listed.
No. Listings and order come from our research only. Businesses can ask us to correct their details, but not to change their position.
It is generated from the directory's latest research, checked in 2026. Conditions, operators and seasons change — confirm details with the operator before you book.
