Agincourt Reef

Agincourt Reef is an outer reef system sitting on the very edge of Australia's continental shelf, part of the Great Barrier Reef. Its position on the continental shelf edge gives it exceptional diving conditions, with excellent visibility and a wide variety of marine life across multiple distinct dive sites within the reef complex.

The reef offers varied terrain to suit different experience levels. North Bay features a shallow coral garden accessible to beginners as well as a drift along the outer reef wall. Stonehenge is noted for healthy coral and swim-throughs woven through the shallows. Nobody's combines a fish-covered bommie, a coral wall, and a sandy area. Totem has a prominent coral spike rising from the sea floor but reaches depths suited only to certified divers, while beginners can explore its anemone-filled coral garden. Advanced Bommie consists of two large towers rising from a seabed at 40 metres, with a deep gutter between them known as a reliable spot for sharks. The Rocks is an easy dive across coral boulders along the reef. Certified divers typically complete dives of around 40 minutes, and up to two dives are available.

Marine life at Agincourt Reef includes clownfish, Maori wrasse, parrotfish, cuttlefish, barracuda, reef sharks, stingrays, and turtles. Dwarf Minke Whales are present during the June–September season. The reef also attracts whales between May and October more broadly.