Cape Banks Bridge is a mixed reef a few hundred metres north of the tip of Cape Banks, close to the low rock spit that joins the cape to the mainland. It has a small place in Sydney diving folklore: it was found on Christmas Eve 2000 by divers chasing a DIVE Log article that claimed a cave full of grey nurse sharks lay off here. There is no cave and there were no sharks – McFadyen later established the story had been fabricated to influence charter operations – but the divers who went looking found a good reef anyway.

From the boat the sounder shows a sandy bottom at 27–28 m with scattered rocks, then a flat kelp-covered reef between there and 22 m, and in shallower water a vertical wall at 15 m that rises to clear rock at 10 m full of nooks and crannies. Sponges and small gorgonians cover the wall and the rock faces. Fish life is excellent: eastern blue devilfish in the holes, one-spot pullers, seapike, bream and leatherjackets over the reef, and rays on the sand including a huge bull ray.

It is a comfortable intermediate boat dive with a natural profile from the deep sand up to the 10 m wall, easily covered on scooters over 100 m in each direction, and it is diveable on the flood tide when the bay's outflow would spoil sites nearer the heads. Like everything on this cliff line it is a private-boat and club site with no charter service, fifteen to twenty minutes from the Botany Bay ramps, and it pairs well with the Cape Banks Caverns or the Minmi Trench on a two-dive morning.

Boat only. Travel out of Botany Bay, round Cape Banks and go a few hundred metres north; anchor in 22 m or shallower where the reef comes up off the sand at the GPS mark. Fifteen to twenty minutes from the Kyeemagh or Foreshore Road ramps.

Cape Banks is almost an island, joined to the mainland by a very low rock spit, hence the 'bridge'. No regular charter; private boat.

Immediately outside the Botany Bay heads on the open coast, exposed to east and south swell; the 10–15 m wall section is surgy in anything over about 1 m and the site is best in westerlies or light winds with seas under 1.5 m. Visibility is usually good because the coast is steep, but the outgoing tide from Botany Bay can carry dirty water past the cape after rain – dive on the flood. Rock fishers work Cape Banks constantly.

Descend to the kelp reef at 22 m, work out to the scattered rocks on the 27–28 m sand briefly, then come in to the vertical wall at 15 m and follow it, rising to the clear rock with nooks and crannies at 10 m. Cover 100 m or so in each direction from the anchor (scooters make this easy) and finish shallow on the wall for the safety stop.

No regular charter – private boat or dive-club (St George Scuba Club) only