HMS ASAMA
Protected Area
Plymouth Sound Shores and Cliffs
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) - HMS ASAMA offers some of Cornwall & Devon's richest wreck diving. Water ranges 10-18°C, warmest July, August, September.
The HMS Asama is a proper piece of history, just off the coast and lying in a shallow 9 metres. It’s an old trawler, requisitioned as a minesweeper in WWII and sadly sunk by aircraft in 1941. For us, that backstory gives it real character – you’re not just diving a lump of metal, you’re diving a wartime grave. What we love about the Asama is how accessible it is, even for newer divers, but it’s still fascinating enough to keep experienced wreck hounds happy. The wreck itself is reasonably intact, spread across the seabed, and you can still make out the main features of the ship. We've spent hours poking around the bow and stern sections, imagining it in its working days. Visibility can be a bit hit-and-miss, like much of the UK, but on a good day, the structure comes into sharp focus. Keep an eye out for plenty of conger eels in the nooks and crannies – they’re a common sight here – and the usual suspects like blennies and crabs making themselves at home amongst the plates. It’s a great site for a relaxed explore, especially on a slack tide, and a solid choice when you want a tangible link to the past.
Typical HMS ASAMA Dive Profile
Illustrative profile based on site depth and type. Actual dive profiles vary - always follow your dive computer and training.
Safety Notes
Wreck site - avoid penetration without wreck diving certification. Watch for sharp metal and entanglement hazards.
Nearest Dive Centres to HMS ASAMA
Dive shops near HMS ASAMA
Plymouth Diving Centre
Sound Diving Limited
Dive Looe
Scuba 2000
Viewpoint Diving Centre
Reviews for HMS ASAMA
Conditions
Ocean conditions, forecast and tides for HMS ASAMA
HMS ASAMA Ocean Conditions
Monthly averages for HMS ASAMA, 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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