EIYO MARU
Protected Area
Hon Cau-Vinh Hao
Why dive here
With 176+ marine species recorded in the area - including giant moray eels, sea turtles and pufferfish - EIYO MARU offers some of Nha Trang's richest wreck diving. Water ranges 25-30°C, warmest May, June, September.
The Eiyo Maru is our favourite wreck in Nha Trang, hands down. Yes, it’s a deep dive, pushing 40 metres, but for those with the training, it’s absolutely worth the bottom time. This Japanese tanker, torpedoed in 1945, rests upright and largely intact, a testament to its formidable size – 140 metres long. Descending onto the main deck, you immediately feel the scale of the disaster, the sheer tonnage of the steel. We love exploring the huge cargo holds, now open to the blue, where schools of fusiliers swirl so thick they momentarily block the light. Keep an eye on the deck for octopus and the occasional large grouper lurking in the shadows. Penetration isn't really an option here, not safely anyway, but there's plenty to see on the exterior, especially around the stern with its massive rudder and prop. The engine room superstructure is also fascinating, a jumble of twisted metal colonised by sponges and colourful soft corals. This site really suits experienced wreck divers who appreciate history and a bit of a challenge.
Typical EIYO 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 (40m) - 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.
Reviews for EIYO MARU
Conditions
Ocean conditions, forecast and tides for EIYO MARU
EIYO MARU Ocean Conditions
Monthly averages for EIYO MARU, sourced from Copernicus Marine satellite data
August Averages
Sea Temperature
29.66°C
85°F
Current Speed
3 cm/s
Direction: E (90°)
Chlorophyll-a
0.108 mg/m³
Clear water
Salinity
32.98 PSU
Data sources: Copernicus Marine Service (EU)
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