HMS Hermes
Protected Area
Kayankerny MSAN
Why dive here
With 254+ marine species recorded in the area - including barracuda, dolphins, sea turtles, sperm whales and spinner dolphins - HMS Hermes offers some of Trincomalee & East Coast's richest wreck diving. Water sits around 27°C.
The Hermes is not just a dive, it’s a pilgrimage for those who truly appreciate wreck diving. Lying deep, between 48m and 55m, this WWII aircraft carrier swallowed by the Indian Ocean in 1942 feels immense, even at that depth. We love tracing the flight deck, imagining the planes still there, a real sense of history pressing in around you. It's an expert dive, no question, and you’ll want proper gas planning and experience with deep wrecks. The visibility can be excellent, though sometimes a thermocline will bring a chill and a slight haze. Our favourite part is dropping down the funnel, a massive void that still feels like a ship's beating heart, now home to schools of palani and sleek unicornfish that dart through the structure. We’ve found the best time to dive is early morning before any potential surface chop builds, and always with a good guide who knows the entry points into the hangar decks – exploring those dark spaces is where the Hermes truly reveals her secrets. The sheer scale, the way light filters down into the structure, it all makes for an incredibly atmospheric dive.
Typical HMS Hermes Dive Profile
Illustrative profile based on site depth and type. Actual dive profiles vary - always follow your dive computer and training.
Safety Notes
Maximum depth 48m exceeds recreational limits (40m). Technical diving certification and equipment required.
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 HMS Hermes
Conditions
Ocean conditions, forecast and tides for HMS Hermes
HMS Hermes Ocean Conditions
Monthly averages for HMS Hermes, sourced from NOAA buoy data - nearest station: Open-Meteo grid (8.36, 81.44) (0km away)
August Averages
Sea Temperature
27.39°C
81°F
Air Temperature
28.94°C
84°F
Wind Speed
6.08 m/s
11.8 knots
Atmospheric Pressure
1007.5 hPa
Based on 5 years of monitoring data · Data sources: NOAA NDBC
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