Meet the site
Tabbagai Gap is the deepest of the reef sites along the Kurnell cliffs south of Cape Solander, and one of the least known. It lies off the southern part of Kamay Botany Bay National Park, where a gap in the cliffs (spelt Tabbigai or Tabbagai on different maps) is known to rock fishermen and walkers on the coastal track. Underwater the reef is formed by walls running roughly north–south and dropping from about 24 m to 28 m. To the east the bottom is sandy with a few small boulders, although McFadyen notes this is an intermediate sand zone rather than the true sand edge, so the reef may extend further. The walls are cut by many small overhangs that shelter cuttlefish, Port Jackson sharks (particularly in winter) and even firefish, while schools of ladder-finned pomfret hang under the ledges and silver sweep and black reef leatherjackets move over the top. McFadyen's single dive here was made in huge seas with very poor visibility, yet he still found the site impressive and considered it worth several more dives in better conditions, so for now it remains largely unexplored. It is a natural companion to nearby Tabbagai Point, the Desalination Plant Inlet and the Cape Solander sites, all within a few hundred metres. Because of the depth and the lack of shore reference, it suits experienced Advanced or deep-certified divers on private boats who enjoy discovering sites for themselves and are comfortable with limited information.
What you might see
Cuttlefish, Port Jackson shark, firefish (lionfish), ladder-finned pomfret, silver sweep, black reef leatherjacket, sponges
Location
Deeper north–south walls dropping from 24 to 28 m off Tabbagai Gap in the southern section of Kamay Botany Bay National Park, south of Cape Solander.
Facilities nearby
Departure only: Botany Bay ramps (Kyeemagh, Foreshore Road, Bonna Point at Kurnell) or Port Hacking ramps (Gunnamatta Bay, Lilli Pilli), with parking and toilets; air/nitrox at Abyss (Ramsgate) and Pro Dive Cronulla.
Before you make plans
Conditions, access and operator schedules can change. This is a location guide, not a dive plan. Ask a local operator about current conditions and suitability for your training and experience.
Sources & further reading
michaelmcfadyenscuba.infomichaelmcfadyenscuba.infoRecord updated 26 Sept 2026. Source claims are being reviewed.