Roberts Shoal is located off the eastern side of Moreton Island and is another Brisbane dive site that is often overlooked. This rocky reef can only be dived when conditions are calm, with winter generally the best time to experience this brilliant dive site. Roberts Shoal is basically a jagged rocky reef rising from the sand at 30 metres and reaching within 12 metres of the surface.

This rocky reef is very impressive, and riddled with ledges, swim throughs and one very large cave. There is not much hard coral to be seen, but the rocky walls and caves are coloured by beautiful black coral trees, gorgonians, soft corals, sea whips and tubastra corals. Commonly seen at Roberts Shoal are turtles, stingrays, wobbegongs, blue gropers, mackerel, batfish, brown-spotted gropers, schools of pelagic fish and the caves are often full of bullseyes.