Back of Lime Rock
Protected Area
Carrowmore Point to Spanish Point and Islands SAC
Why dive here
With 169+ marine species recorded in the area - including dolphins, dwarf minke whales, humpback whales, ocean sunfish (mola mola) and octopuses - Back of Lime Rock offers some of West Coast's richest wall diving. Water ranges 8-17°C, warmest July, August, September.
Back of Lime Rock offers a straightforward dive along a rocky seabed, dropping to about 32 metres. It’s a good spot for beginners looking for some depth, or for checking gear before heading to more exposed sites. You'll find a typical Irish rock reef here, with a chance to spot some local crustaceans tucked into crevices. Expect a calm dive, often with decent visibility for the region.
Typical Back of Lime Rock Dive Profile
Illustrative profile based on site depth and type. Actual dive profiles vary - always follow your dive computer and training.
Safety Notes
Deep dive (32m) - monitor air consumption closely. Advanced certification recommended.
Cold water this month (avg 14°C). Drysuit or thick wetsuit (7mm+) recommended.
Always perform a 3-minute safety stop at 5m before surfacing.
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Conditions
Ocean conditions, forecast and tides for Back of Lime Rock
Back of Lime Rock Ocean Conditions
Monthly averages for Back of Lime Rock, sourced from Open-Meteo marine data - nearest station: Open-Meteo marine grid (53.32, -9.66) (22km away)
October Averages
Sea Temperature
14°C
56°F · Range: 11.7–15.4°C
Air Temperature
12°C
54°F
Wind Speed
8.2 m/s
15.9 knots
Atmospheric Pressure
1007.4 hPa
Based on 4 years of monitoring data · Data sources: Open-Meteo marine data
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