Meet the site
The SS Minmi was a 75 m, 1,455-ton steel collier built at Meadowside, Glasgow, in 1927 for J. and A. Brown and Abermain Seaham Collieries and registered at Newcastle. She was named after the Lower Hunter town or the Minmi colliery and spent her career on the Newcastle–Melbourne run, carrying coal south and returning in ballast. On 8 May 1937 she left Melbourne for Newcastle; at about 10.15 pm on 13 May, in dense fog and fairly heavy seas, she ran onto the outside of Cape Banks, the south-eastern corner of Botany Bay's northern headland. At 12.45 am she lurched and broke her back, splitting in two just forward of the funnel. The cook, Frederick Boulton, died of a heart attack after the impact and fireman Robert Burnside drowned during the rescue; 24 of the 26 crew survived. Over the following decades the sea pushed wreckage around the point, and today the largest surviving piece – the stern section – sits on the rock platform inside the headland at Cruwee Cove, also called Pussycat Bay, next to the NSW Golf Club. By around 2021 McFadyen described it as almost flat. Girders and plates are scattered through the cove in shallow water, and the boiler, engine and propeller probably lie close to the original strike point on the exposed outer corner, where the sea is nearly always too rough to dive. Coal from the ship is also found in the nearby Minmi Trench inside the bay entrance. The wreck is more a heritage curiosity than a structured wreck dive: shallow twisted steel on a rock and barnacle bottom, colonised by kelp, cunjevoi, sea urchins and the usual Botany Bay reef fish – luderick, silver sweep, mado and blue gropers. It is best combined with a dive on the Cape Banks caverns or the Cruwee Cove reef, which are among the most interesting sites in the area. It suits experienced shore divers comfortable with surge and rock-platform entries, or boat divers looking for a shallow second dive.
What you might see
Luderick, silver sweep, mado, eastern blue groper, yellowtail, kelp, cunjevoi, sea urchins, barnacles, octopus
Location
Remains of the 1937 collier Minmi on the rock platform and in the shallows of Cruwee Cove (Pussycat Bay) just inside Cape Banks, the northern headland of Botany Bay; the stern section is the largest piece.
Facilities nearby
Cape Banks car park in Kamay Botany Bay National Park (vehicle fee, no toilets at the end – nearest at La Perouse); air at Sydney Dive Academy (Matraville) and Abyss (Ramsgate).
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
michaelmcfadyenscuba.infomichaelmcfadyenscuba.infomichaelmcfadyenscuba.infoRecord updated 26 Sept 2026. Source claims are being reviewed.