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. Red Rooster Reef lies east of Jibbon Bombora and shares the complex's excellent fixed life.

It is defined by a very prominent wall with small boulders on the sand at its base. Running in from the east, the bottom rises from 27 m to 22 m where boats anchor, beside a small inlet in the reef, and the average dive depth is about 25 m, giving 26–29 minutes on air. North of the inlet, about 3 m off the wall, lies an old Admiralty-pattern anchor – a relic of a sailing ship that anchored or lost gear off Port Hacking.

About 25 m south along the wall is a very small cave and a few more isolated rocks, and a resident seal has been known to use this area, so keep an eye out. The wall is well decorated with sponges, sea squirts, gorgonians and giant jelly ascidians, and the overhangs hold typical Jibbon reef fish – one-spot pullers, silver sweep, leatherjackets, seapike and yellowtail. The neighbouring Oporto site links to Red Rooster along the reef edge, and the two are often explored together.

With no charter operating from Port Hacking, the reef is dived by private boats and the St George Scuba Club. It suits experienced Advanced divers, preferably on nitrox, who like a wall dive with a bit of maritime history and the chance of a seal encounter.

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. Run west towards McFadyen's mark, 34° 04.767' S 151° 10.867' E (which he notes is not 100% accurate), and drop anchor when the bottom comes up from 27 m to 22 m, near a small inlet in the reef.

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.

From the anchor swim north along the wall checking the overhangs, find the Admiralty anchor 3 m off the wall north of the inlet, return over the reef top and go south along the wall about 25 m to the small cave (watch for the resident seal) and isolated rocks. About 26–29 minutes on air.

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.