Agincourt Reef

  • Location Latitude:  15°58’58.2″S Longitute: 145°49’20.8″E
  • Depth:  0-35 metres
  • Visibility: 20 – 25 metres
  • Access: via boat or helicopter from Port Douglas
  • Size: 3950 hectares

Agincourt Reef is a cluster of five reefs 65 kilometres east of Port Douglas.   Together these reefs cover a total of 3950 hectares.

Reef Size

  •  510 hectares – Reef one
  • 620 hectares Reef Two
  • 1250 hectares Reef three
  • 1260 hectares Reef Four
  • 310 hectares Reef Five

Along this Reef, there are swim-throughs, pinnacles, drifts and walls.

Agincourt is a famous reef suitable for scuba divers and snorkelers of all levels and includes 16 sites to explore.

This Reef has large reef clusters (bommies) that have formed underwater canyons and tunnels.

Marine Life

See Maori wrasse, giant clams, clownfish, sea anemones, unicornfish, yellow-striped barracuda and turtles.   In the shallows of the Reef, you can also see  Lizardfish, parrotfish, damselfish and rays.

This site is a series of smaller reefs with at least sixteen sites to explore.


This site has exciting swim-throughs and caves.


Coral Gardens have an exceptional abundance of brightly coloured fish.

Castle Rock

At the southern end of this Reef is the reef site Castle Rock. This site feature is a tall coral pinnacle that rises from a steep sand slope, offering shallow and deep water diving.

This site is just around the corner from the continental shelf.

Blue Wonder

Blue Wonder offers a breathtaking wall dive to 40 metres.

Nursery Bommie

Nursery Bommie is a spectacular pinnacle

Take your pick from the award-winning Quicksilver Reef platform, Silversconic and Poseidon Reef Tours to see this fantastic reef location.

Agincourt Reef Map

Next, stay overnight at Cairns Liveaboard Reef Encounter.