Meet the site
The Fish Bommies sit at the deep, seaward end of the gutter that leads up to Fish Rock Cave's deep entrance, on the south-eastern corner of the island at 28 to 32 metres. Rather than a single bommie, the site is a scatter of semi-trailer-sized boulders that have tumbled off the rock over geological time, creating a maze of overhangs, crevices and swim-throughs on the sand. It is one of the better spots at Fish Rock for close encounters with juvenile grey nurse sharks as well as full-grown adults up to three metres, which use the boulder gaps as much as the open gutters, and the structure also holds a strong population of ornate and spotted wobbegongs tucked under the ledges. Black coral trees grow from several of the larger boulders, and sponges and gorgonians cover the exposed faces, giving the site good colour for a spot this deep. Fish and invertebrate life is dense: bullseyes and kingfish move through the gaps, loggerhead and green turtles use the boulders for rest stops, and moray eels, octopus and nudibranchs occupy the smaller cracks. Because the site sits deeper than the cave and Shark Gutters, it is usually offered as a second dive for groups who want a change of scenery and a chance at grey nurse sharks away from the busier gutter mooring, and it works well linked with a swim up to the deep cave entrance to finish. The depth and the maze-like boulder terrain mean it suits divers who are comfortable navigating without a fixed reef line and who can manage a 28-32 m profile with a sensible reserve, rather than newly certified divers, but it rewards that experience with one of the more overlooked but genuinely excellent corners of the Fish Rock complex.
Research this site before booking Stored site notes may be historical. These questions highlight gaps without turning old instructions into a current dive plan.
Fish Rock – Fish Bommies is recorded as Pinnacle/Bommie in South West Rocks. The listed access is boat. Confirm the actual meeting point, route and permission to visit; a map pin does not establish any of these.
Topics flagged by the stored research
These are questions prompted by the existing notes, not a verified or complete hazard assessment.
- Current and timing
- Ask how the operator assesses the current window for the actual route. Historical tide notes are not a departure instruction.
- Planned depth
- Confirm the intended route and training requirements; the recorded maximum is not a target.
Historical access notes exist for this record, but have not been independently verified for current use. Request current directions from the operator or site manager rather than following an old entry description.
Questions, answered
Is Fish Rock – Fish Bommies suitable for my certification?
The record lists Deep/Advanced + experience. That does not establish suitability for every route or day. Share your training, recent experience and equipment needs with the operator and ask about the specific proposed dive.
Can I book Fish Rock – Fish Bommies through YouDive?
YouDive is an independent research directory. Contact an operator directly to confirm whether it currently runs the trip, the inclusions and the booking terms.
What you might see
Grey nurse sharks (juveniles and adults), ornate and spotted wobbegongs, black coral trees, loggerhead and green turtles, moray eels, kingfish, large cod, cuttlefish, octopus, lionfish
Location
Large boulder formations at the bottom of the gutter leading to the cave's deep entrance, on the south-eastern corner of Fish Rock.
Before you make plans
Conditions, access and operator schedules can change. This is a location guide, not a dive plan. Ask a local operator about current conditions and suitability for your training and experience.
Sources & further reading
fishrock.com.auswrdive.com.auRecord updated 27 Sept 2026. Source claims are being reviewed.