THISTLEMOR
Protected Area
Brownsham
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) - THISTLEMOR offers some of Cornwall & Devon's richest wreck diving. Water ranges 10-18°C, warmest July, August, September.
The *Thistlemor*, a steamship resting at 20 metres, feels very much like a proper wreck dive, even if she's not quite intact. Built in 1906, she sank in heavy seas in 1909, leaving behind a substantial debris field spread across the seabed. You'll find her two large boilers standing proud, acting as apartment blocks for local wrasse and conger eels. Explore the hull plates and scattered machinery where crabs scuttle, or try spotting nudibranchs on the encrusting life. It's a dive that rewards careful exploration, perfect for those who appreciate history and the persistent reclaiming power of the ocean.
Typical THISTLEMOR Dive Profile
Illustrative profile based on site depth and type. Actual dive profiles vary - always follow your dive computer and training.
Safety Notes
Depth of 20m - Advanced Open Water certification recommended.
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.
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Conditions
Ocean conditions, forecast and tides for THISTLEMOR
THISTLEMOR Ocean Conditions
Monthly averages for THISTLEMOR, 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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