HMSM E18
Why dive here
With 50+ marine species recorded in the area - including dwarf minke whales and jellyfish lake - HMSM E18 offers some of Baltic Coast's richest wreck diving. Water ranges 1-17°C, warmest July, August, September.
The HMSM E18 is a haunting dive, sitting upright at 57 metres, and for us, it’s one of the Baltic’s real draws. You descend onto a piece of history, a submarine built by Vickers in 1915, and the scale of it quickly becomes apparent. The twin shafts are still there, the torpedo tubes visible, though sealed. We love the way she just rests on the seabed, almost as if she’s waiting for a new crew. Visibility here can be a bit variable, but on a good day, the low light filters down, creating an eerie glow on the steel. You can spend a good chunk of your bottom time just circumnavigating the hull, imagining the life on board. While we don't often see big pelagics here, small cod and blennies have made the various nooks and crannies their home, darting in and out of the corroded metalwork. For serious wreck enthusiasts, especially those with an interest in naval history and technical diving skills, this site is a truly special experience. It’s cold, it’s deep, and it’s spectacular.
Typical HMSM E18 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 57m 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.
Cold water this month (avg 11°C). Drysuit or thick wetsuit (7mm+) recommended.
Always perform a 3-minute safety stop at 5m before surfacing.
Reviews for HMSM E18
Conditions
Ocean conditions, forecast and tides for HMSM E18
HMSM E18 Ocean Conditions
Monthly averages for HMSM E18, sourced from Open-Meteo marine data - nearest station: Open-Meteo marine grid (59.85, 20.79) (4km away)
October Averages
Sea Temperature
11°C
53°F · Range: 7.3–14.8°C
Air Temperature
8°C
47°F
Wind Speed
5.57 m/s
10.8 knots
Atmospheric Pressure
1010.6 hPa
Based on 4 years of monitoring data · Data sources: Open-Meteo marine data
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