The Ozone Shipwreck
Protected Area
Port Phillip Heads
Why dive here
With 129+ marine species recorded in the area - including blue sharks, blue whales, dolphins, dwarf minke whales and great white sharks - The Ozone Shipwreck offers some of Victoria's richest drift diving. Water ranges 13-20°C, warmest January, February, March.
Dirty Rock, it’s not the prettiest name, but trust us, this pinnacle is one of our absolute favourites at Cocos. You drop in, often into a decent current, and immediately feel that surge of anticipation. The rock itself is a magnet for big stuff. We’ve had dives here where the schools of hammerheads are so thick, they literally blot out the sun for a few seconds. It’s like a living curtain. Below, the volcanic rock drops down to about 40 metres, and that’s where you position yourself, hooking in if the current is properly ripping. This is where the show really happens. We’re talking Galapagos sharks cruising by with that slow, deliberate power. Marble rays, some easily over two metres across, glide past almost without effort. Look closely into the nooks and crannies too; the moray eels, especially the speckled ones, are always curious. The visibility can be anything from 10 to 30 metres, depending on the currents and plankton, but it’s rarely a problem when you’ve got so much action right in front of you. This isn’t a leisurely drift; it’s an adrenaline shot, best suited for experienced divers comfortable in strong currents. Come here for the sheer volume of pelagics; it rarely disappoints.
Typical The Ozone Shipwreck Dive Profile
Illustrative profile based on site depth and type. Actual dive profiles vary - always follow your dive computer and training.
Safety Notes
Drift dive - carry a surface marker buoy (SMB) and stay with your group. Brief the current direction before entry.
Cold water this month (avg 15°C). Drysuit or thick wetsuit (7mm+) recommended.
Reviews for The Ozone Shipwreck
Conditions
Ocean conditions, forecast and tides for The Ozone Shipwreck
The Ozone Shipwreck Ocean Conditions
Monthly averages for The Ozone Shipwreck, sourced from Open-Meteo marine data - nearest station: Open-Meteo marine grid (-38.3, 144.7) (0km away)
October Averages
Sea Temperature
15°C
58°F · Range: 13.4–16.3°C
Based on 4 years of monitoring data · Data sources: Open-Meteo marine data
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