GREATHAM - Cornwall & Devon

The Greatham, just off Bolt Head, is one of our absolute favourite wrecks in this corner of the UK. We love the way she sits upright, two massive boilers still dominating the midships, even after all these years since she went down in 1918. Dropping onto the deck, you’re often greeted by schools of pollock, weaving through the superstructure, a silver flash in the green light. The bow is a real highlight, still very intact, and it feels like stepping back in time when you peer into the hold spaces. It's a deep dive, down to 40m, so definitely one for experienced divers comfortable with the chillier water and sometimes brisk currents. Visibility can range from glorious 15m to a more typical 5m, but even on the murkier days, the sheer scale of the Greatham makes her an impressive dive. Look closely around the plates for nudibranchs, and the occasional lobster peeking out from under a bulkhead. A slack water dive is always best here; try to hit it just before the turn for the most relaxed exploration.

Location
Cornwall & Devon, United Kingdom, Mediterranean & Europe
Coordinates
50.305134, -3.507267
Type
wreck
Maximum Depth
40m

Marine Protected Area: Berry Head to Sharkham Point

Best Time to Dive in Cornwall & Devon

The warmest water temperatures in Cornwall & Devon occur in January, averaging 9.6°C. The coolest conditions are in December at 9.6°C.

Monthly Water Temperatures

  • January: 9.6°C (air: 7.3°C)
  • February: 9.6°C (air: 8.4°C)
  • March: 9.6°C (air: 8.6°C)
  • April: 9.6°C (air: 10.1°C)
  • May: 9.6°C (air: 12.6°C)
  • June: 9.6°C (air: 15.2°C)
  • July: 9.6°C (air: 16.6°C)
  • August: 9.6°C (air: 17.1°C)
  • September: 9.6°C (air: 15.9°C)
  • October: 9.6°C (air: 13.5°C)
  • November: 9.6°C (air: 10.7°C)
  • December: 9.6°C (air: 8.7°C)

Nearby Dive Sites in Cornwall & Devon

Nearest Dive Centres to GREATHAM

Marine Life in Cornwall & Devon

Home to 192 recorded species including 93 reef fish, 18 sharks & rays, 13 whales & dolphins, 11 crabs & lobsters, 11 other, 10 seagrass & algae.

Notable Species

Recommended Packing List for GREATHAM

Based on average water temperature of 9.6°C.

  • Drysuit - water at 10°C demands a drysuit with thermal undergarments
  • Hood & Gloves (7mm+) - critical to prevent heat loss
  • Mask - essential for every dive
  • Fins
  • BCD - buoyancy compensator
  • Regulator - your most safety-critical piece of gear
  • Dive Computer - tracks depth, time, and NDL
  • Surface Marker Buoy (SMB) - essential for boat pickups
  • Dive Torch - useful for crevices and colour at depth
  • Underwater Camera - capture your diving memories

Frequently Asked Questions

What is the maximum depth of the SS Greatham wreck dive and what can divers expect to see there?
The SS Greatham wreck dive reaches a maximum depth of 40m. Divers exploring this historic steam ship vessel, sunk on January 22, 1918, can expect to encounter its significant features, including two boilers and the triple expansion engine of 210NHP with its single shaft. This fascinating wreck, measuring 88.4m x 11.6m, offers a compelling glimpse into maritime history.
What kind of marine life and wreck features are typically found when diving the SS Greatham?
When diving the SS Greatham, divers will primarily explore the impressive wreck features of this 88.4m x 11.6m steam ship. Key components to observe include its two boilers and the triple expansion engine of 210NHP with its single shaft. While specific marine life details are not provided in the current data, wrecks often attract diverse ecosystems, which you can learn more about in our wildlife database.
How challenging is the SS Greatham dive site, and what is its difficulty rating?
The SS Greatham dive site is classified as an intermediate difficulty dive. Reaching a maximum depth of 40m, this wreck dive requires divers to have appropriate training and experience for deeper and more challenging conditions. It is considered a non-dangerous wreck, but its depth warrants respect and proper planning.
What are the best times or conditions to dive the SS Greatham wreck for optimal visibility and currents?
Specific information regarding the best times or conditions for optimal visibility and currents at the SS Greatham wreck is not available in the provided data. However, for any wreck dive, it's generally advisable to consult local dive operators for up-to-date conditions and to plan your dive during periods of slack tide to minimize currents. You can find general guidance on planning your dives on our When to Dive page.
What diving certifications are required to dive the SS Greatham wreck?
While specific certification requirements are not explicitly stated, given the SS Greatham's maximum depth of 40m and its intermediate difficulty rating, divers should possess an advanced open water certification or equivalent. This ensures you have the necessary training and experience for deeper wreck dives. Always confirm specific requirements with your dive operator before planning your trip to Cornwall & Devon.
What are the typical current and visibility conditions at the SS Greatham dive site?
The provided data for the SS Greatham dive site does not include specific details on typical current and visibility conditions. These factors can vary greatly depending on local weather, tides, and seasonal changes. We recommend checking with local dive centers in Cornwall & Devon for the most current information before planning your dive to ensure optimal and safe conditions.