GREAVESASH
Protected Area
Dolphin Head Highly Protected Marine Area
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) - GREAVESASH offers some of Cornwall & Devon's richest wreck diving. Water ranges 10-18°C, warmest July, August, September.
The Greavesash is a proper dive, a deep shot that rewards the effort. Lying in 46 metres, this isn't one for the casually certified, but for those with the training, she’s a beauty. We love dropping onto the bow, often silhouetted against the ambient light filtering down, with the stern rising slightly as you work your way along the deck. The hull is still largely intact, a testament to her robust build, and we've spent many an hour exploring the holds, peering into what would have been the engine room, feeling that tangible connection to maritime history. The marine life here can be surprisingly good, given the depth. Conger eels are often tucked into any available crevice, their eyes following you as you pass. Look for colourful jewel anemones coating the plates, and we’ve seen some hefty lobsters marching across the sand nearby. Our pick for timing is often a slack tide around midday for the best light penetration and calmer conditions; it makes the descent and ascent much more enjoyable when you’re not battling the current. It’s a serious dive, but the sense of accomplishment, and the sheer scale of the wreck, makes it a standout for us.
Typical GREAVESASH 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 46m 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.
Reviews for GREAVESASH
Conditions
Ocean conditions, forecast and tides for GREAVESASH
GREAVESASH Ocean Conditions
Monthly averages for GREAVESASH, 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
Plan & book
Ways to dive Cornwall & Devon, from day trips to liveaboards.
Day trips & courses
via GetYourGuideGuided dives, courses and snorkel trips with instant booking.
Find dive trips in Cornwall & DevonPlaces to stay
via Booking.comHotels and dive resorts near Cornwall & Devon.
Search stays in Cornwall & DevonDive insurance
Most travel insurance excludes or limits scuba. Check what you need before you go.
Dive insurance explainedPartner links: we may earn a commission if you book, at no extra cost to you. How we make money
Where to Stay near GREAVESASH
Prices from Booking.com. We may earn a commission at no extra cost to you.
