HEMSLEY 1
Protected Area
Trevose Head and Constantine Bay
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) - HEMSLEY 1 offers some of Cornwall & Devon's richest wreck diving. Water ranges 10-18°C, warmest July, August, September.
The Hemsley 1 isn't your typical pretty reef dive, but we love it for its sheer historical grit. This old tanker, built in 1916, truly feels like a slice of maritime history frozen in time. She ran aground back in '69 on her way to the breakers, so you're seeing the end of her working life, not some dramatic wartime sinking. What you get is a really broken-up wreck, scattered across the seabed, which means plenty of nooks and crannies to poke around in. The hull plates are draped in dead man's fingers and colourful jewel anemones, creating these incredible textured tapestries. Ling often lurk in the deeper sections, and you’ll spot wrasse darting between the twisted metal. We'd suggest going at slack water to avoid any strong currents, as the visibility can be a bit challenging at times, but on a good day, the light filtering through the wreckage is quite something. It’s a dive for those who appreciate the stories ships tell, and don't mind getting up close with some real industrial archaeology.
Safety Notes
Wreck site - avoid penetration without wreck diving certification. Watch for sharp metal and entanglement hazards.
Nearest Dive Centres to HEMSLEY 1
Dive shops near HEMSLEY 1
Dive Newquay
Harlyn Dive School
Wavecrest Scuba
Scuba 2000
Viewpoint Diving Centre
Karleyth Diving Ltd.
Reviews for HEMSLEY 1
Conditions
Ocean conditions, forecast and tides for HEMSLEY 1
HEMSLEY 1 Ocean Conditions
Monthly averages for HEMSLEY 1, 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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