The Japanese air raids on Darwin left the harbour's war graves; Sydney Harbour has the remains of the 1942 midget submarine attack; flying boats lie in Roebuck Bay; and merchant ships torpedoed along the east coast rest in deep water. This list covers every wreck in the directory recorded as lost between 1939 and 1945.
Updated daily from the directory. 4 sites listed.

1. Surf Coast & Great Ocean Road · VIC
Lost 1940 · The first American merchant ship lost in WWII, intact and upright in 82 m off Cape Otway – Victoria's premier deep technical wreck.
Our takeThe first American merchant ship lost in the war, sunk by a German mine off Cape Otway on 8 November 1940, more than a year before Pearl Harbor. Intact and upright in 82 m; Victoria's premier technical wreck.

2. Port Phillip Heads · VIC
Lost 1940 · Scattered remains of the auxiliary minesweeper cut in two by MV Duntroon in November 1940 with the loss of all 24 crew – the RAN's first WWII loss, a war grave in 12–15 m in the South Channel, thick with cuttlefish and seahorses.
Our takeThe Royal Australian Navy's first loss of the war: an auxiliary minesweeper cut in half by the troopship Duntroon in Port Phillip in November 1940, all 24 crew lost. The remains are scattered in 15 m inside the Heads.

3. Surf Coast & Great Ocean Road · VIC
Lost 1940 · A 119 m interstate liner wrecked on Formby Reef in 1940 and picked over by Whelan the Wrecker – two Scotch boilers awash at low tide and a wide field of plating, winches and shaft in 3–10 m; a fine flat-day dive and snorkel.

4. Port Phillip Heads · VIC
Lost 1945 · A 1883 Bass Strait passenger-cargo steamer with twin hatches and central superstructure under heavy sponge growth in 48 m; rarely dived.
The guide
The Second World War reached Australian waters in three ways: German raiders and mines off the south-east coast in 1940 and 1941, the Japanese air raids on Darwin from February 1942, and Japanese submarines along the east coast in 1942 and 1943. Each left wrecks. The mines took the City of Rayville and the Cambridge off Victoria; the Darwin raids sank eight ships in the harbour in a morning; the submarines torpedoed freighters from Cairns to Gabo Island and put a midget submarine into Sydney Harbour.
This list is ordered by the year the wreck was lost among wrecks from 1939 to 1945, which is why the pre-war-loss Belbowrie at Maroubra opens it; from there it runs through the 1940 minings, the 1942 raids and the late-war reef strandings.
Nowhere else in Australia has a cluster of Second World War wrecks that a recreational diver can visit in a weekend. The Meigs, Mauna Loa, Zealandia, British Motorist and Peary all lie in 18 to 30 m within the harbour, dived on the neap-tide slack when the current stops and the visibility rises to 5 to 10 m. Darwin's operators run them from April to October; the Peary is a US war grave and is dived under permit conditions. The wrecks are protected under the Underwater Cultural Heritage Act, as is everything else on this list older than 75 years.
Some of the most important wartime wrecks are closed. The M24 midget submarine off Sydney's northern beaches and the Japanese submarine I-124 off Darwin are protected war graves inside no-entry zones. HMAS Sydney and HSK Kormoran lie in 2,500 m off Shark Bay. AHS Centaur is in 2,000 m off Moreton Island. They appear in the directory for their history, marked as no-dive sites, and the I-124 has a virtual-reality tour produced by the Northern Territory government.
Editorial last reviewed September 2026. The list itself is regenerated from the directory daily.
Yes, with a charter on neap tides in the dry season. The Meigs, Mauna Loa, British Motorist, Zealandia and Kelat are war graves: no entry where remains may be present, no touching.
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