HMML 380 - Cornwall & Devon

We’re going to be straight with you: the HMML 380 isn't a deep dive, sitting at a maximum of 7m. What it lacks in depth, though, it more than makes up for in atmosphere and sheer historical presence. Sunk in 1919, this wreck is a tangle of metal, now softened by time and a thick coat of marine growth. Drop down and you're immediately in its world. The structure is broken, but you can still pick out the ribs and plates of the old vessel. Our favourite bits are where the light filters through gaps in the wreckage, illuminating clouds of juvenile pollock that dart in and out. Keep an eye out for dogfish tucked under larger plates, and the vibrant colours of jewel anemones clinging to every surface. It’s an ideal spot for macro photography, or for newer wreck divers wanting to experience a piece of history without the challenge of depth or strong currents. Just remember your drysuit; it’s the UK, after all.

Location
Cornwall & Devon, United Kingdom, Mediterranean & Europe
Coordinates
50.142254, -5.046876
Type
wreck
Maximum Depth
7m

Marine Protected Area: Swanpool

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 HMML 380

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 HMML 380

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