Meet the site
Marinelife.org.au describes a flat sandy area at about 10 m with small bommies, beside a wall with numerous caves reaching 26 m. Dive the World describes a series of shallow bommies on the reef edge with a sandy floor, where excellent visibility is common, and says it is popular for night diving.
The layout is easy. The sand at 10 m makes a natural gathering area beneath the boat, and the bommies scattered across it are small enough to circle in a few minutes each. The wall and caves offer a deeper option for those who want it. Because it is shallow and sheltered, the site is ideal for photographers, who can take their time with the macro life on the bommies.
Dive the World lists garden eels on the sand, whitetip reef sharks, potato cod and turtles, with cleaner shrimps, Saron shrimps and bumblebee squat lobsters on the bommies. The name suggests turtles are regular visitors, possibly resting in the caves.
Turtle suits divers of every level. It is one of the few sites at Holmes that newer divers can enjoy without the depth and current of the walls, and it is the natural choice for a night dive on a Holmes itinerary.
Research this site before booking Stored site notes may be historical. These questions highlight gaps without turning old instructions into a current dive plan.
Turtle Cave (Holmes Reef) is recorded as Reef in Coral Sea. The listed access is boat (multi-day/liveaboard). 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.
- Other water users
- Ask about vessel activity, exclusion areas and the agreed surface arrangements.
- Overhead environments
- Ask whether the plan stays entirely in open water. A wreck or cave listing is not permission or training to enter.
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 Turtle Cave (Holmes Reef) suitable for my certification?
The record lists Advanced Open Water. 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 Turtle Cave (Holmes Reef) 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
Turtles, whitetip reef sharks, potato cod, garden eels, cleaner shrimps, Saron shrimps, bumblebee squat lobsters, flashlight fish (night)
Location
A series of shallow bommies on a flat sandy area at about 10 m on the reef edge of Holmes Reef, beside a wall with caves; used as an overnight mooring.
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
dive-the-world.commarinelife.org.auaustralianmarineparks.gov.auRecord updated 27 Sept 2026. Source claims are being reviewed.
