Dorothea Quarry
Protected Area
Dinas Dinlle
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) - Dorothea Quarry offers some of Cornwall & Devon's richest diving. Water ranges 10-18°C, warmest July, August, September.
Dorothea Quarry offers a freshwater dive in a former slate quarry. We’ve found several submerged structures, like old vehicles and machinery, which make for interesting navigation. It’s a good spot for training or if you’re looking to get your dive fix when the sea conditions aren't playing ball. Visibility can vary, but it’s generally calm.
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Conditions
Ocean conditions, forecast and tides for Dorothea Quarry
Dorothea Quarry Ocean Conditions
Monthly averages for Dorothea Quarry, 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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