HMT 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) - HMT COMET offers some of Cornwall & Devon's richest wreck diving. Water ranges 10-18°C, warmest July, August, September.
The HMT Comet, a trawler sunk by a mine in 1940, isn't for the faint of heart. Sitting at a chilly 59 metres off Falmouth, it's a serious technical dive, demanding respect and proper planning. We love its intact nature, a stark contrast to some of the more broken-up wrecks in the Channel. Dropping down, the bow is often the first thing to loom into view, typically shrouded in the green gloom that’s so characteristic of British waters, even on a clear day. Visibility here can be a lottery, but when it’s good, you can appreciate the scale of this old girl. Her large trawl winches are still discernible, encrusted with a thick layer of plumose anemones that sway gently in the slight current. We’ve spotted conger eels the size of small tree trunks peering out from beneath collapsed plating. Our favourite part is probably the stern, where the prop is often still visible, surrounded by schooling bib and pollack that shimmer under torchlight. It’s a somber, silent place, a real journey back in time, and an absolute privilege for experienced wreck divers. Just remember your drysuit and plenty of gas; it’s a long way home.
Typical HMT 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 59m 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 HMT COMET
Dive shops near HMT COMET
DiveUK
Porthkerris Divers
Seaways Diving
Karleyth Diving Ltd.
Viewpoint Diving Centre
Wavecrest Scuba
Reviews for HMT COMET
Conditions
Ocean conditions, forecast and tides for HMT COMET
HMT COMET Ocean Conditions
Monthly averages for HMT 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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