ARMAS
Protected Area
Gouliot Caves and Headland, Sark
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) - ARMAS offers some of Cornwall & Devon's richest wreck diving. Water ranges 10-18°C, warmest July, August, September.
The Armas, a carrier vessel that met its end on the Great Nannel Reef in 1973, now offers a different kind of passage for divers. This wreck sits well-broken up, a sprawling metal landscape at the entrance to Plymouth Sound. You'll navigate through scattered plates and bulkheads, which have become home to a good population of wrasse and pollock. It’s an interesting rummage around, especially when the visibility is decent, giving you a real sense of its former scale. We’d say it’s a solid dive for those who enjoy exploring the bones of a ship.
Safety Notes
Wreck site - avoid penetration without wreck diving certification. Watch for sharp metal and entanglement hazards.
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Conditions
Ocean conditions, forecast and tides for ARMAS
ARMAS Ocean Conditions
Monthly averages for ARMAS, 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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