DEUCALION (POSSIBLY)
Protected Area
South of Portland
Why dive here
With 176+ marine species recorded in the area - including blue sharks, dolphins, dwarf minke whales, humpback whales and ocean sunfish (mola mola) - DEUCALION (POSSIBLY) offers some of Cornwall & Devon's richest wreck diving. Water ranges 10-18°C, warmest July, August, September.
The Deucalion, potentially, holds a certain allure for us, mostly because anything at 60m with a wartime story gets our attention. We’re talking proper deep wreck territory here, not for the faint of heart or the casually certified. Dropping onto her on a good day, the visibility might stretch to 10 metres, which feels like a luxury in these parts. You’ll find the steamship broken but still recognisable, the scale of her 90-metre length slowly revealing itself as you descend. We love exploring the midship section, where the superstructure has collapsed inwards, creating a fantastic habitat. Look for schools of bib darting through the rusted metalwork, and hefty conger eels peering from every dark crevice. Our favourite spot is usually around the bow, where the bombing damage is most evident, a stark reminder of her final moments. It’s a dive that rewards careful planning and experienced deep divers, offering a genuine sense of history and some seriously impressive resident marine life.
Typical DEUCALION (POSSIBLY) 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 60m 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.
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Conditions
Ocean conditions, forecast and tides for DEUCALION (POSSIBLY)
DEUCALION (POSSIBLY) Ocean Conditions
Monthly averages for DEUCALION (POSSIBLY), sourced from Open-Meteo marine data - nearest station: Open-Meteo marine grid (50.44, -2.73) (3km away)
October Averages
Sea Temperature
17°C
62°F · Range: 15.1–17.5°C
Air Temperature
13°C
56°F
Wind Speed
8.14 m/s
15.8 knots
Atmospheric Pressure
1011 hPa
Based on 4 years of monitoring data · Data sources: Open-Meteo marine data
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