This Split Bommie, distinct from the named 'Split Bommie' feature sometimes referenced within the Julian Rocks Nursery far to the north, is a rock pinnacle rising from the sand near Split Solitary Island in the Coffs Harbour local reef network, dived as one of Jetty Dive Centre's supplementary options around the island. It sits in a comfortable 10-20 m depth range, making it accessible to Open Water divers as either a stand-alone site or an extension of a Split Solitary Island dive. The bommie functions as a compact structure surrounded by open sand, a habitat type that typically concentrates resident reef fish and the occasional wobbegong shark against the more exposed surrounding terrain, and nudibranchs and other invertebrates are found on its surface in similar density to the rest of the Split Solitary Island reef system.

Because it is a smaller, secondary feature rather than a headline site, it is generally worked into a longer dive around the main island rather than targeted specifically. Detailed published description of this particular bommie is limited, and given how many features around the Solitary Islands share similar generic names (Split Bommie, Black Rock and similar labels recur at multiple locations along this coast), divers should confirm with Jetty Dive Centre exactly which structure is meant before relying on this description for trip planning, and should treat it as a pleasant but minor addition to a Split Solitary Island day rather than a reason to book a trip on its own — most divers encounter it simply as a short detour on the swim between two of the island's named moorings.

Jetty Dive Centre departs from the public floating pontoon wharf in Coffs Harbour boat harbour, opposite the Attitude Burgers building (check in at 398 Harbour Drive). Private boats use the public ramp inside the harbour breakwall. These local reefs are all within a short run of the harbour and are used as backup sites when weather rules out a trip to the islands proper.

Conditions off Coffs Harbour depend heavily on which island is being run: North West Solitary and Split Solitary sit closer inshore and are usable in more marginal weather, while South Solitary and any northern sites need a bigger settled window. Visibility across the group is generally 8-25 m and best away from river influence; the Coffs, Bellinger, Nambucca and Clarence systems all periodically dirty inshore water for a few days after heavy rain. Summer (Nov-Apr) is warmest with tropical vagrants and mantas; winter (May-Oct) is cooler with grey nurse sharks and giant cuttlefish.

Humpback whales pass April-November. These inshore reefs are the fallback when even Split Solitary Island is unworkable, so they are typically dived only a handful of times a year.

Descend onto the bommie top, circle it looking for wobbegongs and schooling reef fish, and ascend along the same structure.

Jetty Dive Centre uses these reefs as close-in backup sites on days too rough to reach the Solitary Islands.