UB 65
Protected Area
Pentire Peninsula
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) - UB 65 offers some of Cornwall & Devon's richest wreck diving. Water ranges 10-18°C, warmest July, August, September.
The UB 65 is a submarine wreck sitting upright at 54 metres, a proper deep dive that often requires trimix. It went down in 1918, a U-boat that’s relatively intact for its age and depth. We usually find the conning tower still identifiable, and the gun mount stands out against the gloom. Schools of whiting often mill around the structure, and conger eels are not uncommon in the darker recesses, peering out from open hatches. This is a site for experienced technical divers, offering a tangible piece of history rather than colourful reefs.
Typical UB 65 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 54m 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 UB 65
Dive shops near UB 65
Harlyn Dive School
Dive Newquay
Wavecrest Scuba
Scuba 2000
Viewpoint Diving Centre
Karleyth Diving Ltd.
Reviews for UB 65
Conditions
Ocean conditions, forecast and tides for UB 65
UB 65 Ocean Conditions
Monthly averages for UB 65, 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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