Meet the site
Middleton Reef is the northern partner of Elizabeth Reef, about 230 km from Lord Howe Island across a 47 km-wide oceanic pass from Elizabeth, and one of the southernmost coral reefs in the world. It measures about 8.9 km by 6.3 km, and at high tide only a single sand cay about 100 m by 70 m remains above water. Like Elizabeth, it lies in the northernmost National Park Zone of the Commonwealth Lord Howe Marine Park and is listed as a Ramsar wetland of international significance. Parks Australia notes black cod, green turtles and Galapagos sharks among its protected species and describes diving and snorkelling here as a once-in-a-lifetime experience.
The reef's surface is dominated by shipwrecks. The largest is the Runic, a 13,500-ton ship (SS Runic, built 1949) that ran aground in 1961 and burned; it is now a broken, charred hulk stripped of fittings and is listed as its own entry. The Japanese tuna boat Fuku Maru (1963) lies high and dry, burnt out and in very poor condition, at about the four o'clock position on the outer reef, and the British barque Annasona (1907) was once a landmark and was used by the RAAF for bombing practice in World War II. The combined list for the two reefs runs to 26 named wrecks and 12 unidentified sites.
That wartime use has a modern consequence: Parks Australia has declared a 500 m exclusion zone around suspected unexploded ordnance at Middleton Reef, and the area is closed to visitors. Divers must check the current notice before planning.
Recreational fishing is prohibited at Middleton Reef; diving and snorkelling are permitted without a permit. There are no facilities, and reaching it requires an ocean-going vessel and a settled weather window. It is a destination for experienced expedition divers only, and depths and specific dive sites are not published.
Research this site before booking Stored site notes may be historical. These questions highlight gaps without turning old instructions into a current dive plan.
Middleton Reef is recorded as Reef in Lord Howe Island. 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.
- Current and timing
- Ask how the operator assesses the current window for the actual route. Historical tide notes are not a departure instruction.
- Water movement
- Ask how swell and local exposure affect the proposed entry, exit and route.
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 Middleton 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 Middleton 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
Galapagos sharks, black cod, green turtles, coral reef fish
Location
A remote platform reef about 8.9 km by 6.3 km, about 230 km north of Lord Howe Island, the northern of the pair of reefs, with the rusting wreck of the Runic on its reef flat.
Facilities nearby
None.
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
australianmarineparks.gov.auen.wikipedia.orgoceans1.customer.netspace.net.auRecord updated 26 Sept 2026. Source claims are being reviewed.