Meet the site
The Blowhole is Lady Elliot's best-known eastern-side dive, an L-shaped cave with an opening at about 14 m that drops down and out through the side of the reef onto ledges at 20-22 m. It is the kind of short, open swim-through that gives an easy taste of cave scenery without a real overhead commitment, and it is too deep for snorkelling. Outside the cave, a cleaning station attracts silvertip sharks, and watching them come in to be cleaned is the highlight for many divers. The wall and ledges are decorated with healthy gorgonian fans, and anemones with clownfish, angelfish, jacks and schools of fish fill the area. Turtles are common. The eastern side is the island's windward side, so the site is dived only in light winds or westerly conditions; when it works, it offers some of the most dramatic topography around the island. The resort notes that the Blowhole, Tubes and Hiro's Cave are all accessible in a single dive, drifting south along the wall. The site suits divers with some experience and good buoyancy, ideally Advanced certification, because of the cave passage and the depth at the exit. Divers uncomfortable with enclosed spaces can swim over the top rather than through. A torch is useful inside the cave and for bringing out the colours of the fans and anemones on the ledges. Because the eastern side is dived less often, the gorgonian fans here are large and in good condition, and fish are less accustomed to divers than on the western side, so approach slowly and keep bubbles away from the cave ceiling.
Research this site before booking Stored site notes may be historical. These questions highlight gaps without turning old instructions into a current dive plan.
The Blowhole (Lady Elliot Island) is recorded as Cave/Cavern in Lady Elliot Island. The listed access is boat (day trip). 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.
- 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 The Blowhole (Lady Elliot Island) 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 The Blowhole (Lady Elliot Island) 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
Silvertip sharks (cleaning station), gorgonian fans, anemones and clownfish, angelfish, jacks, turtles, schooling fish, batfish
Location
An L-shaped cave on the eastern (south-east) wall with an opening at 14 m that drops down and out onto ledges at about 22 m; silvertip sharks are cleaned outside it.
Facilities nearby
Lady Elliot Island Eco Resort: PADI dive shop (gear hire, courses, fills), rinse area, lockers; resort restaurant, bar and accommodation. Island access by resort flights only.
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
ladyelliot.com.auoceanity.com.audivernet.commarinelife.org.auRecord updated 26 Sept 2026. Source claims are being reviewed.
