The Chang Chow is a piece of K'gari's maritime history rather than an established dive. Marinelife.org.au records that the 82 m steamer, carrying 70 crew and 119 passengers, struck rocks near Breaksea Spit in 1884 and was beached on Fraser Island; seven Chinese passengers were presumed drowned. Today the remains lie buried by sand beyond the breakers, about 4 km from the charted wreck position.

K'gari's ocean beach is famous for wrecks – the Maheno further south is the best known – and the Chang Chow belongs to the same story of ships caught on the island's long exposed coast and the shoals of Breaksea Spit. Unlike the Maheno, however, the Chang Chow is not visible: it lies in the surf zone under shifting sand, surfacing only when storms scour the beach.

That makes it a site of historical rather than practical interest. The surf zone along this coast has a constant shore break, strong rips and poor visibility, and the beach is also home to sharks. Divers should not expect to see anything on a normal day; the site is included here because it is listed in the regional dive references, and because a flat-calm day after storms might briefly expose remains in shallow water.

Getting there is an adventure in itself – barge, 4WD, permits and hours of beach driving. Anyone visiting the northern end of K'gari for the fishing, camping or scenery can look for it; divers wanting a genuine K'gari-area wreck dive are better served by the ex-HMAS Tobruk or the Roy Rufus reef in Hervey Bay. As a historic shipwreck, any exposed remains are protected and must not be disturbed.

K'gari is reached by vehicle barge from River Heads (south of Hervey Bay) or Inskip Point (Rainbow Beach); a 4WD, a vehicle access permit and a camping permit (if staying) are required from Queensland Parks. Drive the ocean beach north past Eli Creek, Indian Head and Waddy Point to the Orchid Beach/Waddy Point area – 3-4 hours on sand from the barge, timed around low tide. The wreck position given by marinelife.org.au (-24.78242, 153.26635) lies beyond the breakers, about 4 km from the charted position, and is normally buried by sand.

K'gari's eastern ocean beach faces the open Coral Sea and is exposed to the south-east trade winds and ocean swell almost all year, with a constant shore break and strong rips and longshore currents. The wreck is buried beyond the breakers and only uncovered after major storms scour the sand. A dive would require an exceptionally flat day, typically a period of westerly winds in winter, with swell under 0.5 m.

Visibility in the surf zone is usually very low.

Not a planned dive under normal conditions. If the wreck is exposed and the sea is flat, snorkel out from the beach with a buddy and spotter on shore, stay within the calm window and do not enter the surf zone in any swell.

Historic shipwreck – protected under the Underwater Cultural Heritage Act 2018; do not disturb remains.

No operator – not a regular dive site; occasional private exploration only.