Holborough Lake
Protected Area
Baty's Marsh
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) - Holborough Lake offers some of Cornwall & Devon's richest diving. Water ranges 10-18°C, warmest July, August, September.
Holborough Lake offers a straightforward inland dive, good for getting wet and practicing skills. You’ll find a few sunken boats and other training platforms to navigate around. Visibility can vary, as with most lakes, but it’s generally a calm environment, making it a solid choice for newer divers or those refreshing their certifications. It’s not a site for spotting exotic creatures, but it serves its purpose well as a local training ground.
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Conditions
Ocean conditions, forecast and tides for Holborough Lake
Holborough Lake Ocean Conditions
Monthly averages for Holborough Lake, 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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