UNION PACIFIC
Protected Area
Dao Ly Son
Why dive here
With 41+ marine species recorded in the area - including seahorses and sea turtles - UNION PACIFIC offers some of Hoi An & Cu Lao Cham's richest wreck diving. Water ranges 24-31°C, warmest June, August, September.
The Union Pacific isn’t your typical deep wreck dive; this is a shallow, sun-drenched exploration of history. We’re talking about a former carrier vessel, run aground back in ’71, sitting in just 3 metres of water. It’s less about penetration and more about seeing how time and the sea reclaim steel. What we love here is the light. The sun dapples right through the water onto the wreck, illuminating every barnacle and the small shoals of fish darting in and out of the exposed ribs. You’ll weave around the skeletal remains, spotting nudibranchs clinging to rusted plating and the occasional pufferfish peeking from behind a corroded bulkhead. It’s a very relaxed dive, perfect for those wanting to spend a solid hour just observing the details, maybe even spotting some of the old cargo anchors still fused to the deck. Our favourite time to visit is late morning when the sun is high, really making the water sparkle around the wreck. Just watch out for the occasional fishing line; it's still an active fishing area.
Typical UNION PACIFIC Dive Profile
Illustrative profile based on site depth and type. Actual dive profiles vary - always follow your dive computer and training.
Safety Notes
Wreck site - avoid penetration without wreck diving certification. Watch for sharp metal and entanglement hazards.
Reviews for UNION PACIFIC
Conditions
Ocean conditions, forecast and tides for UNION PACIFIC
UNION PACIFIC Ocean Conditions
Monthly averages for UNION PACIFIC, sourced from Open-Meteo marine data + Copernicus Marine (EU) - nearest station: Open-Meteo marine grid (15.95, 108.48) (16km away)
October Averages
Sea Temperature
29°C
84°F · Range: 27.3–31.1°C
Current Speed
12.08 cm/s
Direction: SE (114.4°)
Salinity
32.06 PSU
Based on 4 years of monitoring data · Data sources: Open-Meteo marine data + Copernicus Marine (EU)
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