HMS Hermes
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 ranges 27-30°C, warmest April, May, October.
Diving the HMS Hermes off Trincomalee isn’t just a dive; it's a deep plunge into history. This isn't some small fishing boat; it’s a colossal aircraft carrier, sunk in 1942, lying on its side, remarkably intact. We love how the sheer scale of the wreck hits you – finning past the enormous propeller, then moving up along the hull, it feels like you're exploring an underwater city. The Hermes is just over 50 meters deep at the seabed, with the shallower parts of the wreck around 40 meters. This depth means it's strictly for experienced divers comfortable with advanced decompression protocols, but the rewards are immense. Our favourite part has to be the bridge section. You can still make out the command areas, with schools of batfish circling the structure, almost guarding it. Big groupers often lurk in the hangars, and we’ve seen eagle rays glide over the main deck. It’s a quiet, humbling place, draped in soft corals, where every porthole tells a silent story. To really experience it, we’d suggest multiple dives; you can't absorb it all in just one. Dive early, before the thermocline pushes too high.
Safety Notes
Wreck site - avoid penetration without wreck diving certification. Watch for sharp metal and entanglement hazards.
Reviews for HMS Hermes
Conditions
Ocean conditions, forecast and tides for HMS Hermes
HMS Hermes Ocean Conditions
Monthly averages for HMS Hermes, sourced from Open-Meteo marine data - nearest station: Open-Meteo marine grid (8.53, 81.23) (31km away)
October Averages
Sea Temperature
30°C
85°F · Range: 27.5–30.3°C
Air Temperature
27°C
81°F
Wind Speed
4.73 m/s
9.2 knots
Atmospheric Pressure
1009 hPa
Based on 4 years of monitoring data · Data sources: Open-Meteo marine data
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