Grant Reefs
Why dive here
With 35+ marine species recorded in the area - including humpback whales, orcas and seals & sea lions - Grant Reefs offers some of Pacific Northwest's richest reef diving. Water ranges 7-17°C, warmest July, August, September.
Grant Reefs, a standout in the Pacific Northwest, feels like stepping back in time to an older, wilder ocean. We love the sheer density of life here, especially the invertebrates. Forget everything you think you know about Pacific Northwest diving; this place is different. Descending into the cool, green embrace, you're immediately struck by the sheer number of sunflower stars – we've seen them carpeting the rocks, slowly moving their dozens of arms across the substrate. It’s a sensory overload, watching the Pacific glass shrimp flit nervously amongst the fronds of kelp, or spotting a shy brown catshark tucked into a crevice. The current can be brisk, so pick your slack tide carefully, but that movement is what brings in the nutrient-rich water and, with it, the critters. Our favourite moments are often spent just hovering, watching shiner perch dart through the kelp forest, or catching a glimpse of a spotted ratfish gliding by. This site is perfect for photographers, especially macro enthusiasts, and divers who appreciate the subtle beauty of a thriving, cold-water ecosystem. It’s a real working reef, full of intricate details and constant, quiet drama. You’ll leave feeling like you’ve been let in on a secret.
Safety Notes
Cold water this month (avg 11°C). Drysuit or thick wetsuit (7mm+) recommended.
Nearest Dive Centres to Grant Reefs
Dive shops near Grant Reefs
Salish Sea Dive Inc.
Pacific Pro Dive
UB Diving
Oceanfix.ca
Reviews for Grant Reefs
Conditions
Ocean conditions, forecast and tides for Grant Reefs
Grant Reefs Ocean Conditions
Monthly averages for Grant Reefs, 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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