GRANE
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) - GRANE offers some of Cornwall & Devon's richest wreck diving. Water ranges 10-18°C, warmest July, August, September.
The Grane wreck, resting at 43 metres, is a solid dive for those who appreciate a bit of history. She was a steamship, torpedoed in 1918, and you can still make out the twin boilers and parts of her triple-expansion engine. It’s a proper penetration dive if you know what you’re doing, but even staying on deck offers plenty to see. Over a century underwater means she’s well-encrusted, attracting the usual suspects: conger eels tucked into dark corners, decent-sized wrasse, and plenty of plumose anemones waving in the current. Best tackled on slack water, it’s a good deep dive for experienced wreck enthusiasts.
Typical GRANE 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 43m 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.
Nearest Dive Centres to GRANE
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Conditions
Ocean conditions, forecast and tides for GRANE
GRANE Ocean Conditions
Monthly averages for GRANE, 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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