Between 1963 and 1984, the Queensland government deliberately scuttled fifteen steel vessels along Moreton Island's western shore to form a breakwater for Tangalooma's harbor.
The ships—ranging from 30 to 75 meters—now rest in shallow water three to six meters deep, their rusted hulls colonized by soft corals, sponges, and schools of trevally, kingfish, and yellowtail. Green sea turtles graze on algae along the wrecks' flanks. Wobbegong sharks shelter beneath corroded bow plates. The site has evolved from industrial salvage into one of Queensland's most accessible marine sanctuaries.
Moreton Island lies within a national park and Ramsar-listed wetland. The Tangalooma Wrecks occupy a protected bay on the island's western coast, facing the mainland across Moreton Bay. Calm water and consistent visibility—typically 5 to 10 meters—make the site suitable for beginners. The wrecks' superstructures break the surface at low tide, creating perches for pelicans and cormorants. Moreton Island snorkeling the wrecks draws visitors year-round; winter months offer clearer water and fewer stingers, while summer brings warmer temperatures and higher turtle activity.
The wreck cluster spans roughly 300 meters of shoreline. Each vessel has weathered differently: the Tangalooma (a 1925 steam dredge) retains recognizable deck features, while the Koopa and Curraghbeena have fractured into skeletal frames draped with marine growth. Snorkelers enter from the sandy beach and swim perpendicular to shore, encountering the first hulls within 20 meters. Current flows north to south along the bay; mornings before 10 a.m. offer the calmest conditions. The wrecks sit within a designated snorkel zone; motorized vessels are prohibited within 200 meters. Tour operators launch from Brisbane or Tangalooma Resort, crossing Moreton Bay in 75 to 90 minutes. Day trips typically include snorkel gear, wetsuit rental, and guided marine briefings.
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