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 sits around 9°C.
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 9°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 NOAA buoy data - nearest station: Open-Meteo grid (52.9, -9.67) (0km away)
August Averages
Sea Temperature
8.91°C
48°F
Air Temperature
15.94°C
61°F
Wind Speed
7.4 m/s
14.4 knots
Atmospheric Pressure
1013.6 hPa
Based on 5 years of monitoring data · Data sources: NOAA NDBC
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