Barnard Castle
Protected Area
Lower Dungeness
Why dive here
With 35+ marine species recorded in the area - including humpback whales, orcas and seals & sea lions - Barnard Castle offers some of Pacific Northwest's richest pinnacle diving. Water ranges 7-17°C, warmest July, August, September.
Barnard Castle isn’t always easy. We’ve had dives here where the current rips, and you spend more time finning than spotting. But on a calm day, especially with an incoming tide, this site truly shines. The sheer number of species we’ve recorded here tells a story: it’s a food rich environment, and that brings in the big players. We’ve found giant octopus wedged in crevices, their eyes watching us with unnerving intelligence. Dungeness Crabs are everywhere, scuttling across the rocky bottom. Look for the Blackbelly Eelpout, they’re often tucked into the smaller cracks, just their heads peeking out. Keep an eye on the surface, too; the gulls and Guillemots are a good sign of what’s happening below. We especially love it for the variety of pelagic life that drifts by, thanks to the rich Pacific krill blooms. If you’re a diver who appreciates the hunt for interesting critters and doesn't mind a bit of a challenge, Barnard Castle is definitely worth the effort.
Typical Barnard Castle Dive Profile
Illustrative profile based on site depth and type. Actual dive profiles vary - always follow your dive computer and training.
Safety Notes
Cold water this month (avg 11°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 Barnard Castle
Barnard Castle Ocean Conditions
Monthly averages for Barnard Castle, sourced from NOAA NDBC + Copernicus Marine (EU) - nearest station: 9449880 - Friday Harbor, WA (27km away)
October Averages
Sea Temperature
11°C
53°F · Range: 9.6–11.4°C
Air Temperature
11°C
51°F
Current Speed
3.16 cm/s
Direction: E (108.4°)
Salinity
23.61 PSU
Wind Speed
1.8 m/s
3.5 knots
Atmospheric Pressure
1018.3 hPa
Based on 5 years of monitoring data · Data sources: NOAA NDBC + Copernicus Marine (EU)
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