Turtle Group National Park, Nature reserve in Cook Shire, Australia

Turtle Group National Park comprises nine islands in Queensland, including Nymph Island (65 hectares) and the six islands labelled a to f. Nymph Island is sand and coral rubble with an interior tidal lagoon holding about 3,700-year-old small atolls, linked to the sea by a small creek. The Turtle Group islands are coral cays in different stages of development, from sand-covered islets to those with beach rock and shingle banks.

Turtle Group National Park was gazetted on 24 March 2000, covering nine islands: the six Turtle Group of Islands (a to f), Nymph Island and the Pethebridge Islets. The islands lie within the Great Barrier Reef World Heritage Area, 10 km north of Lookout Point in the Ngulun-Munburra Resources Reserve.

The islands lie 10 km north of Lookout Point, a cape in the Ngulun-Munburra Resources Reserve, and their name comes from the English word for the marine turtles seen there. Nymph Island's interior holds a tidal lagoon, an "Inland Sea" with about 3,700-year-old small atolls, linked to the sea by a small creek.

The islands are reachable only by private boat; there are no visitor facilities on any of them. Wild camping is allowed on Nymph Island and Turtle Islands a, b and f, with a maximum of 10 people per island for up to 14 days.

Nymph Island has a tidal lagoon in its interior, the Inland Sea, holding about 3,700-year-old small atolls and linked to the sea by a small creek. The Turtle Group of Islands instead shows coral islands at different stages, from sand-covered islets to ones with beach rock and pebble banks.