WILLIAM
Protected Area
Boscastle to Widemouth
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) - WILLIAM offers some of Cornwall & Devon's richest wreck diving. Water ranges 10-18°C, warmest July, August, September.
The *William*, off the coast of Cornwall, is a cracking dive for those who appreciate a bit of history with their wreck. She’s a sailing vessel, sunk by a German U-boat in 1917, and sits upright at a very manageable 35 metres. We love that you can really get a sense of her original form, despite the years. The bow points proudly into the current, often shrouded in schooling bib and pollack, while the stern section offers some lovely penetration opportunities into what would have been the holds. What makes *William* really special for us is the way the marine life has integrated with the structure. The masts, now collapsed and lying alongside, are absolutely plastered in plumose anemones, their white tentacles swaying in the gentle surge. Keep an eye out for conger eels tucked into the deeper recesses of the hull – we've seen some absolute monsters here. For divers comfortable with deeper wrecks and temperate water conditions, she offers a genuinely rewarding exploration. The site can get a bit of current, so timing your dive for slack water is always our top tip.
Typical WILLIAM Dive Profile
Illustrative profile based on site depth and type. Actual dive profiles vary - always follow your dive computer and training.
Safety Notes
Deep dive (35m) - monitor air consumption closely. Advanced certification recommended.
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 WILLIAM
Dive shops near WILLIAM
Harlyn Dive School
Scuba 2000
Dive Newquay
Reviews for WILLIAM
Conditions
Ocean conditions, forecast and tides for WILLIAM
WILLIAM Ocean Conditions
Monthly averages for WILLIAM, 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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