The dive
You start in a protected lagoon with colourful coral gardens, then round the point and drift along a deep wall beside the channel between Agincourt Reefs 4 and 3.
Expect schools of red bass, bigeye trevally and silver drummer, and a school of barracuda a little further round. Grey and white-tip reef sharks show up further along the wall. Big schools of unicornfish, anthias and fusiliers are with you the whole dive. On the sandy patches, look for sea cucumbers, including the pineapple sea cucumber, the Great Barrier Reef’s largest.
For snorkellers
The sheltered lagoon is a favourite snorkelling spot. You can get close to large sweetlips, Māori wrasse and giant clams, and see almost every parrotfish species found on the reef. Confident snorkellers who make their way round the point can see what the divers see, from above.
How to dive it
You dive Agincourt Reef on a day trip from Port Douglas. Certified divers get up to three guided dives at three different sites, with a full briefing before each one. Sites are chosen on the day to suit the weather and tides, so we can’t promise a particular site.
Dive it with us
Port Douglas boat dives
Agincourt’s outer-reef bommies: walls, sharks and the big pelagics.
See the tripWhere it is
What you might see
- Grey reef sharkThe classic reef shark: a stocky grey patroller of walls, drop-offs and current points, often in groups.
- Māori wrasseThe reef’s gentle giant: two metres of blue-green fish with a hump on its head and a face full of tattoos, happy to follow divers around.
- BarracudaSilver schools that hang in the blue off the bommies, sometimes hundreds thick, with a few solitary big ones.
- TrevallyBigeye trevally schooling in a slow silver tornado, and giant trevally hunting the reef edge.
- SweetlipsStriped, spotted and thick-lipped, hanging in patient schools under the overhangs by day.
- Giant clamMetre-wide shells with mantles of electric blue, green and purple, some of them a century old.
Nearby sites
- Reef dive · Agincourt Reef Barracuda BommieA deep-water pinnacle on the sheltered side of a small ribbon reef at Agincourt Reef 2, right on the outer edge of the Great Barrier Reef. It’s one of the most popular sites on the Agincourt trips.22 m
- Reef dive · Agincourt Reef Gary’s GutA wall on the outer edge of Agincourt Reef 4 that plunges from 5 metres to 40 metres. It averages about 20 metres, so it suits Open Water divers, and it’s a favourite with repeat divers.40 m
- Reef dive · Agincourt Reef Harry’s BommieA garden reef among the pinnacles and patch reefs west of Agincourt Reef 4. It’s a favourite with dive instructors.16 m
- Reef dive · Agincourt Reef Horse ShoeA patch reef between Agincourt Reefs 2 and 3, in an area of strong tidal movement. You can drift it or dive it from the mooring.20 m
