HIYORE MARU
Why dive here
With 142+ marine species recorded in the area - including barracuda, blue-spotted stingrays, eagle rays, sea turtles and sperm whales - HIYORE MARU offers some of Sipadan's richest wreck diving. Water ranges 29-31°C, warmest May, October, November.
The Hiyore Maru, a steamship sunk by the USS Hammerhead in 1944, gives Sipadan a taste of history. Lying at 38 metres, it’s a dive for those comfortable with depth and a bit of current, which often whips through here. We love dropping down to see the bow emerging from the blue, a ghostly shape against the deeper water. The wreck itself is a playground of steel and history. We’ve finned past the mast, now a vertical garden of soft corals, and peered into dark holds where the light barely penetrates. Inside, you might spot some resident lionfish lurking, or a grumpy stonefish blending perfectly with the encrusted metal. Outside, schools of fusiliers often swirl around the superstructure, a silver current against the grey wreck. It’s not a penetration dive for the casual diver, but there's plenty to explore from the outside. Our favourite part is lingering over the stern, imagining the chaos that sent her down, while parrotfish munch casually on the coral-covered deck. It’s a powerful, atmospheric dive, very different from Sipadan’s famous reef walls.
Typical HIYORE MARU Dive Profile
Illustrative profile based on site depth and type. Actual dive profiles vary - always follow your dive computer and training.
Safety Notes
Deep dive (38m) - monitor air consumption closely. Advanced certification recommended.
Wreck site - avoid penetration without wreck diving certification. Watch for sharp metal and entanglement hazards.
Always perform a 3-minute safety stop at 5m before surfacing.
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Conditions
Ocean conditions, forecast and tides for HIYORE MARU
HIYORE MARU Ocean Conditions
Monthly averages for HIYORE MARU, sourced from Open-Meteo marine data + Copernicus Marine (EU) - nearest station: Open-Meteo marine grid (4.12, 118.63) (0km away)
October Averages
Sea Temperature
30°C
87°F · Range: 29.4–31.5°C
Current Speed
4.12 cm/s
Direction: E (104°)
Chlorophyll-a
0.055 mg/m³
Very clear (oligotrophic)
Salinity
31.68 PSU
Based on 4 years of monitoring data · Data sources: Open-Meteo marine data + Copernicus Marine (EU)
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