Green, loggerhead and hawksbill turtles on every tropical reef, with nesting on the southern Great Barrier Reef cays from November to March.
Chelonia mydas, Caretta caretta, Eretmochelys imbricata
Turtles are a near-certainty on the Great Barrier Reef, at Ningaloo and at Julian Rocks, and a regular sight as far south as Sydney where juveniles ride the East Australian Current. Green turtles graze the seagrass of Moreton Bay, Shark Bay and the Ningaloo lagoon; loggerheads and hawksbills patrol the reef edges. The great event is nesting: Heron, Lady Elliot, Lady Musgrave and Mon Repos near Bundaberg have female greens and loggerheads laying on the beaches from November to February and hatchlings emerging from January to April, and Raine Island in the far north hosts the largest green turtle rookery in the world.
Field notes
Season heat map
Share of the 52 sea turtles sites in New South Wales with a stated best season that includes each month.
Stated season: Year-round; nesting November–February and hatching January–April on the southern cays.
Ordered by how regularly the site is dived and how well it is documented. The species is listed in each site's recorded marine life; sightings are never guaranteed.
Coral reef flats and lagoons with seagrass, from the Great Barrier Reef and Ningaloo to the Cocos Islands; cleaning stations on bommies; the nesting beaches of Heron, Lady Elliot, Raine Island and Mon Repos. A rounded shell moving slowly over the reef or wedged under a ledge asleep. At cleaning stations they hang motionless with fins spread while surgeonfish graze the shell. In season the tracks on the beach at dawn tell you where they nested overnight.
Every Great Barrier Reef island; Julian Rocks; Ningaloo; Cocos (Keeling); Moreton Bay; the Solitary Islands.
Year-round; nesting November–February and hatching January–April on the southern cays.
Never touch or ride a turtle, and do not block a turtle from surfacing to breathe.