Diving & Travel Guide to the Great Barrier Reef – Southern

About Great Barrier Reef – Southern

The Southern Great Barrier Reef is a pristine and less-visited section of the GBR World Heritage Area, encompassing the Capricorn-Bunker Group and the southernmost coral cays of the reef system. This region offers some of the most untouched and biodiverse diving in all of Australia, with coral cays sitting atop massive reef platforms that rise from deep water, creating spectacular wall diving and bommie fields. The major diving destinations include Heron Island, widely regarded as one of Australia's premier dive destinations with its famous Heron Bommie rising from 28 meters to within 5 meters of the surface and covered in vibrant soft corals and gorgonians, and Lady Elliot Island, the southernmost coral cay on the GBR, famous for its manta ray cleaning stations, turtle nesting, and exceptional water clarity. The Capricorn-Bunker Group also includes Lady Musgrave Island, Fairfax Islands, Masthead Island, Wilson Island, One Tree Island, and Erskine Island, each surrounded by healthy reef systems with excellent diving. The region's remoteness from mainland population centers means the reefs remain in outstanding condition, with coral coverage and marine biodiversity rivaling the best sites in the northern GBR. The coral cay islands provide critical nesting habitat for green and loggerhead turtles, and the surrounding waters host large populations of reef sharks, eagle rays, and schooling pelagic fish. Access is primarily from Gladstone (for Heron Island and the Capricorn Group) and Bundaberg (for Lady Elliot Island), with scenic flights and ferry services connecting the islands to the mainland.

Highlights

• ✓Heron Bommie – one of Australia's top dive sites with spectacular soft coral coverage
• ✓Lady Elliot Island's manta ray cleaning stations with reliable encounters year-round
• ✓Pristine coral cays in the Capricorn-Bunker Group with outstanding reef health
• ✓Turtle nesting and hatching on coral cay beaches (November-March)
• ✓Remote and uncrowded diving with exceptional water clarity
• ✓Lady Musgrave Island's sheltered lagoon with diverse marine life

Getting There

The Southern Great Barrier Reef is accessed primarily from Gladstone and Bundaberg in Central Queensland. Gladstone Airport (GLT) receives direct flights from Brisbane and serves as the gateway to Heron Island and the Capricorn-Bunker Group, with a 75-minute ferry ride or 30-minute scenic flight to Heron Island. Bundaberg Airport (BDB) also receives flights from Brisbane and serves as the departure point for Lady Elliot Island, accessible via a scenic flight of approximately 40 minutes. Lady Musgrave Island is reached via a day boat from the Town of 1770, approximately one hour north of Gladstone. The region is considerably more remote than the Cairns or Whitsunday sections of the GBR, which contributes to the pristine condition of the reefs and the exclusivity of the diving experience.