Pacific Northwest, United States
    Kellett Bluff Voluntary No-take

    Joan Rock

    Best months: Sep–Jan

    Protected Area

    Kellett Bluff Voluntary No-take

    Why dive here

    With 35+ marine species recorded in the area - including humpback whales, orcas and seals & sea lions - Joan Rock offers some of Pacific Northwest's richest pinnacle diving. Water ranges 7-17°C, warmest July, August, September.

    Best timeSep–Jan
    WetsuitA drysuit
    Marine lifeHumpback Whales, Orcas and Seals & Sea Lions · 35+ species recorded
    Water7-17°C · warmest July, August, September
    CharacterPinnacle dive
    StandoutDramatic pinnacle topography

    Joan Rock, for us, is a consistent standout in the often-moody Pacific Northwest. What makes it special isn’t some massive wreck or an epic wall; it’s the sheer density of small, weird, wonderful life you’ll find tucked into every crevice. We love dropping in on a calm day, slipping down into that emerald green glow, and just hovering. It’s a fantastic site for those who appreciate the smaller stuff. We’ve spent entire dives here simply peering under ledges, spotting countless Yellowleg Pandalids waving their antennae, or trying to tease out a Horned Shrimp from its hiding spot. Keep an eye out for Spotted Ratfish gliding by in the deeper sections, their long tails trailing behind them. On the surface, the seabirds – Marbled Murrelets, Guillemots, Double-crested Cormorants – are a constant, noisy presence, a good reminder of the rich ecosystem above and below. Our tip: go slow, bring a good torch, and be prepared to spend time looking closely. It’s not a site for zooming around; it’s for appreciating the intricate details.

    Safety Notes

    Cold water this month (avg 11°C). Drysuit or thick wetsuit (7mm+) recommended.

    Today06:2717:3511h 9m daylightGolden hour 16:53

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    Conditions

    Ocean conditions, forecast and tides for Joan Rock

    Joan Rock Ocean Conditions

    Monthly averages for Joan Rock, sourced from NOAA NDBC + Copernicus Marine (EU) - nearest station: 9449880 - Friday Harbor, WA (27km away)

    ExcellentGreatGoodFairPoor★Best monthsThis month

    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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