HMS COMET
Protected Area
Carricknath Point to Porthbean Beach
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 COMET offers some of Cornwall & Devon's richest wreck diving. Water ranges 10-18°C, warmest July, August, September.
The HMS Comet, sitting deep at 60 metres off the Cornwall coast, is one of those wrecks we keep coming back to. She’s a decent sized anti-submarine trawler, originally built as the tug Tamura in 1934, and she went down after a collision in 1940. We love how intact she is for her age and depth. You can still make out the superstructure, and her triple expansion engine is a fantastic sight, usually draped in plumose anemones, their tentacles swaying gently in the subtle current. Dropping down, the visibility here can be temperamental, but when it’s good, the light penetrating from above creates this eerie, beautiful blue glow over the deck. We’ve often found dogfish tucked into crevices and ling patrolling the deeper sections. It’s a serious dive, absolutely, but for experienced technical divers, the Comet offers a genuine sense of history and some truly impressive engineering to explore. We always suggest aiming for slack water, or just after, for the best chance of a relaxed dive around her.
Typical HMS COMET 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 60m 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.
Nearest Dive Centres to HMS COMET
Dive shops near HMS COMET
Porthkerris Divers
DiveUK
Seaways Diving
Karleyth Diving Ltd.
Viewpoint Diving Centre
Wavecrest Scuba
Reviews for HMS COMET
Conditions
Ocean conditions, forecast and tides for HMS COMET
HMS COMET Ocean Conditions
Monthly averages for HMS COMET, 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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