Round Bommie is a large granite monolith divers can explore off Rainbow Beach. This huge slab of rock rises out of the sand at 15 metres and reaches within 6 metres of the surface. It takes about 30 minutes to swim around Round Bommie, but with many ledges and holes to investigate divers are lucky to complete a circuit in an hour.
This fabulous dive site is home to a good variety of reef fish and invertebrates, including crayfish, nudibranchs and hermit crabs. However, most divers will remember Round Bommie for its larger residents, such as the turtles, gropers, wobbegongs, eagle rays and schools of pelagic fish. The sand around the bommie is also a good place to see dozens of stingrays, large Queensland gropers, flatheads, shovelnose rays and leopard sharks over summer. Divers have also encountered manta rays at Round Bommie, making this a very special dive site on the Sunshine Coast.