The Jibbon reef complex is a cluster of deep reefs discovered by McFadyen and the St George Scuba Club from the 2000s onward, named in a running joke after fast-food outlets – because such outlets are always found near one another. Pizza Reef, named because it is round, came first; KFC, Maccas, Hungry Jacks, Red Rooster and Oporto followed as the club found neighbouring reefs, often by accident when wind pushed the boat off the intended mark. KFC Reef lies north-west of Pizza Reef, between it and Jibbon Bombora, and was named on the principle that there is always a KFC near a Pizza Hut.

It runs predominantly east–west, with some northerly sections at its eastern end and a few fingers running south; the base is at about 24 m and the reef top at about 20 m, making it a little shallower than its neighbours. What distinguishes it is the fixed life: McFadyen describes some of the best sponge gardens around Sydney, with sponges, sea squirts and ascidians and gorgonians of many colours crammed into small crevices, and some of the most colourful life you will see anywhere. Fish life is equally strong, with huge schools of one-spot pullers all over the reef, bastard (Tasmanian) trumpeter, huge rays, mosaic, black reef and six-spined leatherjackets, bream, seapike, yellowtail and both giant boarfish and ordinary boarfish.

The reef has not been fully explored, and McFadyen notes that no one but the St George Scuba Club dives it. Its slightly shallower profile gives a few more minutes on the bottom than Pizza or Maccas, and it is an excellent choice for photographers wanting colourful reef scenes. Because the published GPS is on the old AUS66 datum, boats need to convert it.

It suits Advanced divers, ideally on nitrox, with a private boat.

Boat only. Launch in Port Hacking (Gunnamatta Bay/Tonkin Park at Cronulla, Lilli Pilli or Bundeena ramps) and run out through the entrance; the Jibbon reef complex lies just east and south-east of Jibbon Bombora, 5–10 minutes from the ramps. KFC lies north-west of Pizza Reef, between it and Jibbon Bombora.

McFadyen's GPS is 34° 05' 02.3" S 151° 10' 42.4" E on the old AUS66 datum – convert to WGS84 (roughly 200 m shift) before use. Anchor on the reef top at about 20 m.

These reefs sit just outside Port Hacking, exposed to swell from the north-east through the south-east, with some southerly wrap past Jibbon Bombora; plan on seas under about 1.5 m. At 20–27 m they are below most surge once down, but anchoring needs moderate conditions. Water quality is good because the adjacent Royal National Park contributes little runoff, and visibility is usually 12–20 m; heavy prolonged rain can bring dirty water out of Port Hacking on the ebb.

Westerly and north-westerly winds give the best days.

Follow the east–west reef in one direction along its base at 22–24 m, checking the fingers that run south and the northerly sections at the eastern end, then return along the reef top at 20 m. The reef is not fully explored, so note new features.

Nitrox (EAN28–32) recommended; bottom time on air about 22–29 min.

No regular charter – private boat or dive-club (St George Scuba Club) only; no charter boat currently operates out of Port Hacking.