J4 Submarine Wreck
Protected Area
Barwon Bluff
Why dive here
With 129+ marine species recorded in the area - including blue sharks, blue whales, dolphins, dwarf minke whales and great white sharks - J4 Submarine Wreck offers some of Victoria's richest reef diving. Water ranges 13-20°C, warmest January, February, March.
The J4 Submarine is a WWI wreck in the Victorian Ships’ Graveyard, lying north-south on a rocky seabed. Divers can enter through several hatches, though the shallow depth makes it prone to strong surge. When conditions are right, the clear, silt-free interior offers one of Melbourne’s best dives. Maximum depth: 27m. Average visibility: 10m. Inside the J4 Submarine, light streams through cracks, revealing bulkheads, the engine bed, torpedo tubes, and abundant marine life, with fish often around the conning tower.
Safety Notes
Cold water this month (avg 15°C). Drysuit or thick wetsuit (7mm+) recommended.
Reviews for J4 Submarine Wreck
Conditions
Ocean conditions, forecast and tides for J4 Submarine Wreck
J4 Submarine Wreck Ocean Conditions
Monthly averages for J4 Submarine Wreck, 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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